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Converting From Oil Furnaces to Natural Gas In NE USA States Means Adding Gas Safety Devices, Too.

by Barbara 4. December 2014 09:04

Question about safety issues when converting from oil heat to gas heat.

Q: "A natural gas shale line from Marcellus Shale gas in Pennsylvania may extend into the Northeastern states in the next year, if approved (Quote from CBS 12/3/2014) We currently are using oil heat. Replacing the furnace with natural gas will save us a lot of money. How can we avoid the health risks associated with natural gas?"Thanks Tom.

Answer: Continue using carbon monoxide alarms and smoke detectors as you have been doing, remembering to test them monthly and change batteries once a year. I would also suggest you add a Scentry III Gas Shut Off system on your main line into the home as well as Safe-T-Alert Combustible Gas Alarm or a Safety Siren III natural gas alarm near your natural gas appliances such as ranges, fireplaces, etc.

With the Scentry III GFRAB, you can add additional remote sensors, a battery back-up and a connection to a home monitoring system if you have one or plan to get one.

Remember that natural gas is lighter than air and "puddles" at the ceiling above the appliance using it. If near an open stairway, the gas will go to the top of the stairway.

An annual furnace tune up with filter change is needed with gas furnaces as well as with oil. If you want the best disposable furnace filters, use the 4 inch or 1 inch Safe Home filters.

Thanks for your questions.

Sincerely,

Barbara

 

Chart Showing Safe-T-Alert Replacement 12V Propane Alarms CCI Controls Alarms

by Barbara 26. April 2012 10:35

Question about replacing CCI Controls Propane Gas Alarms and Propane Alarms with Tank Valve Shut-Offs with Comparable Safe-T-Alert models.

Q: "My CCI propane alarm in my RV has failed. What unit is available as a replacement since CCI Controls is not in business?" Thanks. Ed

Answer: Below is a chart. The entire unit must be replaced if your CCI Controls unit has an automatic gas valve shut off. Safe-T-Alert replacements for that unit will not work with the CCI valve. Note: new standards require that propane alarms shut down 5 years after installed to power. Shelf life is 10 years if not used.

Below is our main replacement chart.

CCI # Propane MTI Replacements MTI Replacements
CC-7719.04 70-742-R Kit with Valve Surface Mount
CC-7719.58 70-742-R Kit with Valve Surface Mount
CC-7719.70 70-742-R Kit with Valve Surface Mount
CC-7773-231 30-442-P-BR or 35-742BR Flush Mount
CC-7773.081 30-442-P-BR or 35-742BR Flush Mount
CC-7773.251 30-442-P-WH or 35-742WH Flush Mount
CC-7770.230 30-442-P-WH or 35-742WH Flush Mount
CC-7770.231 30-442-P-WH or 35-742WH Flush Mount
CC-7770.233 30-442-P-WH or 35-742WH Flush Mount
CC-7770.234 30-442-P-WH or 35-742WH Flush Mount
CC-7770.241 30-441-P-BR Surface Mount
CC-7773.151 30-442-P-BR or 35-742BR Flush Mount
CC-7770.244 30-441-P-WH Surface Mount
CC-7770.250 30-442-P-WH or 35-742WH Flush Mount
CC-7770.251 30-442-P-BR or 35-742BR Flush Mount
CC-7770.253 30-442-P-BR or 35-742BR Flush Mount
CC-7770.254 30-442-P-BR or 35-742BR Flush Mount
CC-7770.281 30-442-P-BR or 35-742BR Flush Mount
CC-7770.284 30-442-P-WH or 35-742WH Flush Mount
CC-7771.231 30-442-P-BR or 35-742BR Flush Mount
CC-7773.081 30-442-P-BR or 35-742BR Flush Mount
CC-7773.151 30-442-P-BR or 35-742BR Flush Mount
CC-7773.231 30-442-P-BR or 35-742BR Flush Mount
CC-7773.251 30-442-P-BR or 35-742BR Flush Mount
CC-7773.251 30-442-P-BR or 35-742BR Flush Mount

Note: the 30-442 and 35-442 share the same case size. Both recess into the wall so the unit front is flush with the wall. The 35-742 gives you extra safety as you have a carbon monoxide sensor with alarm in the same unit. Please contact Safe Home at sales@safehomeproducts.com or phone us if you have questions. We also sell Costar 9RV battery powered carbon monoxide alarms and Costar 12RV alarms with 9 volt battery back-up systems. Remember that propane leaks are dangerous and carbon monoxide are as well because they can kill silently.

To find these products on our website, go to www.safehomeproducts.com. Go to the search box. Enter for example Safe-T-Alert of 30-442 in the search and you'll get results fast.

Cut-Out Sizes for Flush Mount Units:

30-442-P-or 35-742:

  • Unit Front Measurements: 6.375"W x 2.875"H x 1"D
  • Unit Back Measurements: 5 3/8" x 1 7/8" (part that recesses into wall.

65-542RV :

  • Unit Front Dimensions: 6.5" x 3.5" x 1 3/8 Deep. Unit back dimensions: 5.5" x 3".
  • Case Dimensions: Cut Out: 5.5" x 3".
  • Select  a  wall  location at  least 4” off the
    floor.  Cut a 5 5/8” (143mm) W x 3 1/8” (79mm) H hole

35-741 Cobination Propane and CO Alarm

  • Front Dimensions: 6.5”W x 2.75”H x 1.5”D
  • Cut Out : 5 3/8" x 1 7/8.

Thank your for your question. Please contact us via sales@safehomeproducts.com if you have more questions.

Sincerely, Barbara

Safety Alarms Needed to Protect Home Recently Converted to Natural Gas Heat and Water Heater

by Barbara 31. December 2010 02:34

Question: "We recently converted to natural gas heat and gas hot water boiler. We have two floors above this basement installation. What safety alarm units are required for protection? Nate.

Answer: Thanks for your question for the Ask Barbara Contest, Nate. I am going to answer with the assumption that your home was all electric prior to this conversion. If you heated with propane or oil, some of these recommendations may not apply.

Natural gas homes or businesses need two different types of safety alarms.

Combustible Gas Alarms.

Why do I need a combustible gas detector/gas alarm?

The purpose of a combustible gas alarm is to alert you when you have a raw gas leak. Yes, mercaptan is added to natural gas to make it smell like rotten eggs. But if you are not in the area of the gas appliances and/or you do not have an ability to smell, the odor does you no good. This units must be installed near the gas using appliances. So if your gas furnace and gas water heater are side by side, one natural gas alarm is all you need.

  • No matter how good your nose is, you may not be in the right place at the right time to notice a natural gas or propane leak.
  • Carbon monoxide alarms give NO protection against combustible gas leaks. carbon monoxide sensors detect only carbon monoxide, not raw fuel.
  • Turning off a light, setting a security alarm or closing a door spark a gas explosion or fire. Natural gas leaking from a basement furnace can leak upstairs through hollow walls.
  • Gas can leak into homes via sump pits, inbound water lines or a natural gas well under your home.
  • Each gas appliance is a potential source of a gas leak. Each gas appliance needs its own gas detector
  • We sell two different models with gas specific sensors. These are the Safe-T-Alert Model 40-411-120 and the Safety Siren Pro Gas Alarm; The main differences between the units are how they are installed.

    To properly install the Safe-T-Alert you need an electrical outlet near to the gas appliances. Because this unit has a line cord that is approximately 65 long, mounting ths unit properly is usually less a problem that the direct plug-in Safety Siren. Raw gas detection units must be mounted within 6 inches of the ceiling or on the ceiling at least 12 inches from a wall for natural gas leak protection. Natural gas pools above the appliance: think of an upside down pothole filling with water and you get the picture.

    The Safety Siren requires an electrical outlet near the appliance. Many people choose this option because the Safety Alert unit has a safety tab through which an outlet screw goes. This means the unit cannot be removed from a standard, single screw, double outlet without removing the screw.  These units meet the UL1484 standards for combustible gas alarms.

    Note: UL 1484 listed combustible gas detectors are not detectors for minute gas leaks. Sensors and detectors are tested in a combustible gas environment and meet the UL 1484 standards for alerts of dangerous gas levels. Deliberate exposure to natural gas, butane, propane, etc. can destroy the sensor in this unit. Use the test button to test this unit, not exposure to raw gas.

    Carbon Monoxide Alarms:

    One product of natural gas and all fossil fuels like coal, wood, peat, etc. is carbon monoxide, a colorless, odorless gas. If your furnace and water heater are working properly, carbon monoxide is vented outside. If the vents are not working properly due to obstructions or the furnace heat exchanger cracks, then carbon monoxide is discharged into the air. Unlike combustible gasses, carbon monoxide does not pool but is distributed throughout your air. Carbon monoxide exposure symptoms range from flu-like symptoms to brain damage to death from asphyxiation.

    Recommended at a minimum are carbon monoxide alarms in or outside every bedroom, near the gas appliances and at the top of stairways. The easiest to install are the 9 volt battery units. Believe the alarm even if it sounds intermittently. About 5 years ago, I went to visit my parents in Pennsylvania. They have a washer and gas dryer in their kitchen (since 1952). I noticed that the Costar 9 volt CO alarms were all off their mounts (there were three units total). I was told they were "defective" as they were going off intermittently. I took them home with me and sent them to Quantum Group to be tested. Dave from Quantum phoned and said nothing was wrong with them! Meanwhile, my elderly father did NOT install the plug in Safe-T-Alert unit I had sent them because "I didn't know where to put it." The problem was the vent for the gas dryer was partially clogged with lint!  Since then, local code has changed: their 4 inch diameter gas dryer vent had to be replaced with a 5 inch for the newest dryer to be installed this past year.

    Types of Carbon Monoxide Alarms:

    If you are really concerned about a gas leak, we recommend the Scentry III gas valve shut off systems. Choose from a Scentry III GFRAB LP/Natural Gas Detector Valve Controller with remote sensor capability and a battery back-up option feature or a Scentry III SFGVC Automatic Gas Valve Controller, No Gas Valveunit with a single sensor at the gas valve itself. Scentry units are made in the USA. They do require a special diaphragm type gas valve in 1/2, 3/4 or 1 inch size, a 24 volt power supply and 120VAC or 240VAC power.

    Also install and maintain your smoke alarms which I am sure you already have.

    Thank you for your question and your entry in the Ask Barbara Contest.

    Sincerely, Barbara

    Install Safety First Automatic Gas Valve System and Prevent Gas Explosions In Home or Business

    by Barbara 20. September 2010 13:13

    Question about the Scentry III GFRAB Automatic Gas Valve and Gas Detector System and the Scentry III SFGVC Gas Valve Controller, No Gas Valve

    Q:"After the explosion in San Bruno, CA on 9/9/2010, I am concerned about my home exploding. I have a natural gas furnace, a natural gas fireplace, a natural gas water heater and a natural gas range. I don't have a full basement: my crawl space is about 12 inches high. Drainage is excellent. There would be some moisture but not water. Can this automatic gas valve and sensor system system be installed there?I see that the Scentry III has a connection for an auto-dialer and also can be connected to a ventilation system. Thanks. Thomas."

    Answer: This unit allows you to use remote gas detectors to place near your other gas appliances. There is a battery back-up available if you want protection during a power failure. We do have an installation manual available on our website for this unit.The Scentry Installation Manual.

    The GFRAB stands for gas sensor, mounting feet, remote ready, alarm and battery and includes the gas valve shut-off/controller. NOTE: Must be used with a Scentry III gas valve (sold separately).  Each Scentry gas sensor is calibrated in a gaseous atmosphere so it will alarm at 10% of the lower explosive level (LEL) of the combustible gas. This is not a carbon monoxide alarm as it has only a combustible gas alarm sensor.

    Scentry III-GFRAB Gas (Mounting) Feet Remote (Ready) Alarm Battery Specifications:

    • Case: ABS Plastic
    • Physical Size: 7.6 inches by 4.6 inches
    • Weight: 2.25 lbs
    • Color: Gray
    • Power consumption: 1.5va
    • Supports up to 4 calibrated remote sensors (not included)
    • Requires Scentry III-GVD gas valve (purchase separately)
    • Supports Battery Back-Up (Not Included)
    • Gas Valve Controller for combustible gasses such as natural gas or propane gas. Includes a 24 volt transformer.
    • Connections: screw terminals
    • Input Power: 115VAC, 60 Hz
    • Output Control Relays: 2 amps, 24 VAC
    • Alarm Signal Output: 12V DC @500 ma
    • Reset: manual
    • Sensor Type: Tin Dioxide Semiconductor
    • Alarm Points: Propane (LP) <5200 PPM
    • Alarm Points: Natural Gas / Methane <12,200 PPM
    • Manufactured Proudly in the USA for Safety First USA, Inc.
    • Warranty: 1 year from date of purchase.

    The gas valves that interface are a 1/2 inch, a 3/4 inch and a 1 inch valve.

    Scentry III-SFGVC Safety First Gas Valve Controller Specifications:
    • Case: ABS Plastic
    • Physical Size: 4.6 inches by 3.1 inches
    • Weight: .5 lb.
    • Color: Bone
    • Reset: manual
    • Output Control Relays: 4 amp, 24VAC
    • Power: 1.5va
    • Sensor Type: Tin Dioxide Semiconductor
    • Connections: screw terminals
    • Propane alarm point: <5200 PPM
    • Natural Gas/Methane<12,200 PPM
    • Note: Requires a UL Listed Scentry III .5 inch, .75 inch or 1 inch diaphragm type gas valve that is compatible (not included).
    • Note: Requires a 24V transformer (NOT INCLUDED). See installation instructions for specifications i.e. must match the transformer to power requirements of your gas valve.
    • Note: No option for battery back-up to be added later
    • Note: No option for additional sensors to be added later.
    • Made in USA.
    • Manufacturer: Safety First USA

    The gas valves that interface are a 1/2 inch, a 3/4 inch and a 1 inch valve.

    So the main differences between the units are that the Scentry III-GFRAB gas alarm and gas valve controller (shut-off) includes the 24 volt transformer, has mounting feet and can add options of battery back-up, remote gas sensors and remote alarms.  With the battery option, the pilot lights remain litt during intermittent power failures in regions such as the mountain states where electric power is not always continuous. A 12V output allows adding a phone dialer to alert owners of vacation homes, etc. when an unsafe condition has occurred. Remote gas sensors can be added near gas ranges, gas water heaters, gas furnaces, gas heaters, etc. to add protection using only one gas valve controller.

    Please contact us if you have questions about what components to install.

    Remember that you need carbon monoxide sensor alarms on every floor of your home and in every bedroom where you close the door. The CO monitor does not monitor propane or natural gas leaks: it monitors the carbon monoxide levels from incomplete combustion of fossil fuels like wood, coal, gas, charcoal, etc.

    Thanks again for your timely question.

    Sincerely, Barbara

     

    Replacement Propane Alarm and Automatic Shut Off Valve for CCI Controls Propane Alarm

    by Barbara 2. February 2010 04:28

    Question about the Safe-T-Alert 12V Propane Gas Alarm Series 70 for Motorhome and RV Use.

    Q: "I use my RV for occasional trips. I tried resetting my CCI 7719 gas alarm with automatic shut-off valve a dozen times before I could get it to open today. I need to replace the unit but CCI controls shut down in 2009.  Do you have a replacement unit? The CCI unit is mounted vertically." Thanks. Don from Arizona.

    Answer: Don, you are in luck. Safe-T-Alert just announced a new unit that replaces the CCI Controls propane unit with valve shut-off. The unit is called the 70-742-R-KIT. Included is a combination carbon monoxide and propane gas monitor, a relay to connect to the gas shut off valve and an automatic shut off valve. This valve is for 1/4 inch lines but includes an adapter for 3/8 inch gas lines. It is very important that you replace both your current valve and the malfunctioning CCI unit. The manufacturer warns that otherwise there is danger of a fire. The Safe-T-Alert 70-742 Kit comes in brown black and white. The bonus is that you also get a UL listed carbon monoxide alarm as well as the propane alarm and automatic shut off valve. The unit can be mounted vertically or horizontally.

    Dual Propane/LP and Carbon Monoxide Alarm Features Include:

    • Meets 1/1/05 requirements set by RVIA for new RV's requiring both Propane detectors and CO alarms.
    • Also detects Compressed Natural Gas (CNG)/Methane.
    • Operational Temperature: -40 degrees F to +150 degrees F.
    • Relative Humidity: 15 per cent to 95 per cent
    • >Audible Output: 85dB at 10 feet
    • Gas Alarm Trigger: Less than 25 percent of the lower explosive level of propane and methane.
    • Gas Level Confirmation: 8 Seconds.
    • CO Alarm Trigger: Less than 15 minutes at 400 parts per million.
    • Test/Reset Button - Tests all detector functions with one touch. Resets and Mutes alarm while safety and corrective actions are taken.
    • >Alarm is fully operational during mute cycle and will re-alarm if hazardous conditions reoccur.
    • Two Indicator Lights: Red CO LED flashes with 4 beeps and 5 seconds silence if CO level is over 70 ppm. Red Gas LED flashes and alarm sounds steady tone when dangerous propane or natural gas level is detected.
    • RV 12 Volt Hard Wired Model. Prevents accidental disconnection during alarm.
    • Includes a 1/4 inch gas valve with an threaded adapter for 3/8 inch lines. Replace current valve with this unit to prevent fires.
    • Built for the extreme RV environment.
    • One Year Limited Warranty.
    70 Series Operating Specifications:
    • UL Listing Propane/Natural Gas - UL 1484 RV Gas Detectors.
    • UL Listing Carbon Monoxide UL 2034 RV Carbon Monoxide Alarms.
    • ULC Listing & CSA 6.19-01.
    • Power Supply and Current Draw 12 vDC 132 mA. Relay 12 vDC - 3 amp is included.
    • Operational Voltage: 12 Volt +/- 15%.
    • Low voltage power warning alarm @ 7 volts
    • Front Case Dimensions: 70-742 - 6.375"W x 3.5"H x 1.385"D
    • Patent Number: US 7,248,156 B2
    • Colors: White, Almond or Brown.
    • Recessed Case Dimensions: approximately 1.5 inches deep x 5 inches long by 3 inches wide.

    LP Gas Detectors are required on RVs . . .

    ANSI A119.2 - Fire & Life Safety
    3-4.8 LP Gas Detectors

    "An LP gas detector must be installed in any RV that contains an LP gas appliance and an electrical system. The LP gas detector must be listed as suitable for use in recreational vehicles under the requirements of UL 1484 Residential Gas Detectors, and be installed according to the terms of its listing.­ RVIA Effective Date 9/96, Revised 9/99."

    CARBON MONOXIDE & PROPANE ALARM REPLACEMENT NOTICE: Note to Customers:

    All Safe-T-Alert Propane and Carbon Monoxide Alarms that are 5 years old and older are beyond their Mandatory Replacement Time and MUST be replaced.

    Background: Underwriters’ Laboratories (UL®) Carbon Monoxide Standard UL 2034 and Canadian Standards Association (CSA®) CSA 119.2 now require that all Carbon Monoxide alarms be designed to stop service in 3 to 5 years . UL and CSA have determined that Carbon Monoxide alarms have a limited life. Propane alarms use similar sensors and UL will require the same service life in the near future.

    ALL MTI Propane and Carbon Monoxide alarms which are over five (5) years old MUST be replaced. The following Safe-T-Alert Carbon Monoxide Alarm Models MUST be replaced: SA-4, SA-5, 50-541 and 50-542. Models 60-541 and 60-542 over five (5) years old MUST be replaced.The following Safe-T-Alert Propane Alarms Models MUST be replaced: SA-7 and SA-8. Models 30-441,30-442, 40-441 and 40-442 that are over five (5) years old MUST be replaced.

    Important! Only install CO and Propane alarms that are UL or CSA listed for Recreational Vehicle Use.

    Thanks for your question.

    Sincerely, Barbara

    Residential Automatic Natural or Propane Gas Shut Off Valves to Replace CCI Controls Units

    by Barbara 30. January 2010 08:09

    Question about the Scentry III GFRAB Propane/Natural Gas Home Gas Detector.

    Q: "Our oil burning furnace was replaced with a propane gas furnace. Our concern is gas leaks while we away, i.e. we want protection against explosions and fires. The CCI Controls gas valve system is no longer made. How does this unit work? What components do we need? Thanks. Jim."

    Answer: The Scentry III GFRAB propane/natural gas detector is only one component of this home safety system. To have a complete system, you need these additional components:

    • The Scentry III Gas Valve Controller
    • The Battery Back Up in case there is a power failure.
    • A compatible gas valve such as this .75 inch that is CSA (AGA/CGA) Certificate number 229521-1656058 Australian Gas Association Certificate number 4235,UL Recognized File Number MH5939.
    • Optional: Remote Gas Sensors. Up to 5 remote explosive gas sensors can be monitored by the Scentry III GFRAB unit.

    The compatible valves are in .5, .75 and 1 inch sizes. Each valve is an electrically operated gas shut off valve that opens and closes on a demand signal from a thermostat or other controlling device. Can be used with both natural gas and LP gas at pressures up to 0.5 psi. The White Rodgers replacement is a compression spring closing and soft seat construction gas valve.

    The advantage of this system is that the controller unit supports up to 5 calibrated remote sensors.

    Scentry III-GFRAB Specifications:

    • Case: ABS Plastic
    • Physical Size: 7.6 inches by 4.6 inches
    • Weight: 2.25 lbs
    • Color: Gray
    • Power consumption: 1.5va
    • Supports up to 5 calibrated remote sensors (not included)
    • Requires Scentry III-GVD gas valve (purchase separately)
    • Supports Battery Back-Up (Not Included)
    • Supports Gas Valve Controller for Explosive Gas (Not Included)
    • Connections: screw terminals
    • Input Power: 115VAC, 60 Hz
    • Output Control Relays: 2 amps,
    • 24 VAC Alarm Signal
    • Output: 12V DC @500 ma
    • Reset: manual
    • Sensor Type: Tin Dioxide Semiconductor
    • Alarm Points: Propane (LP) <5200 PPM Alarm Points: Natural Gas / Methane <12,200 PPM
    • Manufactured Proudly in the USA for Safety First USA, Inc.
    • Warranty: 1 year from date of purchase.

    Thanks for your question. Just remember propane gas and natural gas are safe sources of energy if you add protective measures including alarms, shut off valves and regular maintenance of the appliances that use gas.

    Sincerely,

    Barbara

     

    Which Gas Detector Do I Need? I Have Anosmia.

    by Barbara 11. August 2008 09:27

    Q: "I have anosmia, i.e. I have lost my sense of smell. We have natural gas heat, a natural gas water heater and a natural gas cooking stove. I cannot smell a gas leak. Which gas detector do you recommend?"

    Answer: Currently, we sell two brands of combustible gas alarms and an automatic gas shut off system that shuts off gas and sounds a loud alarm when a significant gas leak occurs.

    Two brands are UL1484 listed for use with natural gas and propane gas and also work with gasoline fumes and butane fumes. These are the Safe-T-Alert 40-411AC and the Safety Siren Combustible Gas Alarm and the Safety Siren CO and Combustible Gas Alarm.

    The advantage of the Safe-T-Alert is the long cord for proper positioning of the detector, i.e. high and near the appliance for natural gas and low and near the appliance for propane. We also sell the Safe-T-Alert Combustible Gas Alarm in a 230VAC unit for Europe and Asia. The Safety Siren unit is a direct plug in with a safety tab that the outlet cover center screw (standard 2 or 3 prong outlet) goes through so the unit cannot be easily removed. Most customers who buy the Safety Siren model install an electrical outlet at the proper height for natural gas or propane.

    All our combustible gas alarms sound at less than 25% of the lower explosive or flammable level of the gas.

    The Scentry III GFRAB propane/natural gas detector is only one component of this home safety system. The GFRAB means Gas, Feet on the bottom of the case, Remote, Alarm and Battery. To have a complete system, you need these additional components:

    As noted above, the compatible valves are in .5, .75 and 1 inch sizes. Each valve is an electrically operated gas shut off valve that opens and closes on a demand signal from a thermostat or other controlling device. Can be used with both natural gas and LP gas at pressures up to 0.5 psi. The White Rodgers replacement is a compression spring closing and soft seat construction gas valve.

    The advantage of this system is that the controller unit supports up to 5 calibrated remote sensors.

    Scentry III-GFRAB Specifications:

    • Case: ABS Plastic
    • Physical Size: 7.6 inches by 4.6 inches
    • Weight: 2.25 lbs
    • Color: Gray
    • Power consumption: 1.5va
    • Supports up to 5 calibrated remote sensors (not included)
    • Requires Scentry III-GVD gas valve (purchase separately)
    • Supports Battery Back-Up (Not Included)
    • Supports Gas Valve Controller for Explosive Gas (Not Included)
    • Connections: screw terminals
    • Input Power: 115VAC, 60 Hz
    • Output Control Relays: 2 amps,
    • 24 VAC Alarm Signal
    • Output: 12V DC @500 ma
    • Reset: manual
    • Sensor Type: Tin Dioxide Semiconductor
    • Alarm Points: Propane (LP) <5200 PPM Alarm Points: Natural Gas / Methane <12,200 PPM
    • Manufactured Proudly in the USA for Safety First USA, Inc.
    • Warranty: 1 year from date of purchase.

    Thanks for your question. Just remember propane gas and natural gas are safe sources of energy if you add protective measures including alarms, shut off valves and regular maintenance of the appliances that use gas.

    Sincerely,

    Barbara