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Question DetailsAsked on 6/13/2014

Need to convert our appliances from propane to natural gas in the fall. Who should I contact?

We purchased our house in 2007 with propane installed for the furnace, hot water heater and fireplace. Our local power company will be running natural gas into the subdivision and is hoping to have the work completed by early fall 2014. I need to determine what kind of business I should contact (and if there are any recommended locally) to perform the conversion of my appliances from propane to natural gas. We also learned we will need to have some work done to modify the location of the gas pipe into the house (CLFP indicated they would be unable to locate the gas meter at the existing propane location so it will need to be connected about 9' to the west of where propane currently sits).

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2 Answers


A plumber should be able to take care of all of this. Just make sure you explain what you need converted. The things like your stove, dryer and oven quite often have all the parts when sold included and some almost need nothing but changing a valve setting, but may need a conversion kit. Most furnaces might need a conversion kit as well as the hot water heater.

The piping is definitely a job for a licensed plumber.


Answered 6 years ago by ContractorDon


Water heater / tankless gas fired water heater an HVAC contractor or plumber can modify, IF there is an adapter kit for it, except in areas where code requires a pipefitter do gas connections.

Furnace - HVAC contractor. Plumber also if a boiler rather than forced air, except in areas where code requires a pipefitter do gas connections.

Fireplace and gas line relocation - plumber except in areas where code requires a pipefitter do gas connections.

Clothes dryer, range - appliance repairman or possibly plumber would do it except in areas where code requires a pipefitter do gas connections.

In each case, google for manufacturer website (or check owners/installation manual/instructions in some cases) to see if conversion kit is available for your device - not all are convertible. Then I would find out if pipefitters have to do gas work in your area - otherwise talk to plumbers (Search the List for local ones and reviews) about whether they can do it all, otherwise you might have to get some done by plumber, some HVAC technician, some Appliance Repairman, etc. Pay attention on kit PLUS install total costs for each unit, especially with older appliances - you might find it better to replace older water heater and maybe dryer or range than pay for conversion on an older one that might not have a lot of life left in it.

Piping - there are a few houses out there with plastic, galvanized, some types of copper, and aluminum piping that is (or was when installed) OK for propane but not with natural gas, particularly in areas where the natural gas is not fully desulfurized - check local plumbing code, but if that is case then new gas piping will have to be run through the house as well. Generally, when changing gas type, code requires that ALL connected pipe and valves be brought up to current code for that gas type as well.

Also - if it turns out that your whole internal gas piping has to be replaced, some people leave in the propane piping and keep using propane for things like dryer and range and water heater until they die, then swap them over to new piping and natural gas when they finally replace the appliance - leaving two "live" gas connection points at each appliance for awhile. Saves on the conversion cost, which can be a significant portion of replacement cost. Furnaces people usually convert right over because of the usual fuel cost savings for winter heating.

Answered 6 years ago by LCD

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