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Question DetailsAsked on 11/12/2014

how much does it cost to switch from propane to natural gas. I have two heaters and a tankless water heater.

I am about 150 ft. from the road. I have contacted the city inspector (DWG) 4 times since mid Aug. and he has not
responded. So you must deal with the illusive

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1 Answer


I really don't think the inspector is the person to talk to, unless you were specifically told to talk to him. Usually the gas company new accounts department would handle this - might say they will install to the house (normal), might provide only to a street box and you have to connect from there (rare). First you will probably need to provide gas connection from the appliances (commonly but not always your existing interior gas piping if black iron but flex generally not allowed except final couple of feet from local shutoff valve to the appliances themselves), stubbed out to the meter location by a plumber/gas fitter and pressure tested and passing inspection, THEN the utility comes and hooks the meter up to the piping and pressurizes your system - or in some areas they will not do that on a new install, and the plumber has to come back to do it.

Gas line/meter cost can run from zero (they figure they will recover the installation cost in usage charges) to a flat hookup fee of a few hundred $ typically, to actual cost or a flat per-foot charge for other utilities which can run from a few hundred $ to a thousand or more in nasty areas - especially inside the city limits of large cities.

Appliances - you will have to check manuals - some can use natural gas or propane, some have adjustments needed on the gas valve and/or burners, some have conversion kits that can run form a hundred or two $ to (rarely) $1000 range per appliance. And this applies to hot water heater, furnaces/boilers, range, clothes dryer, barbecue, A/C, pool heater, gas yard lighting, etc. - so combined with piping changeout if needed because you existing piping is not legal for natural gas, can be quite an expense in some cases, depending on how old your house is and local codes.

Plus cost of propane tank removal, of course.

So,, I have seen as low as a couple hundred $ where install is free, lines are good, appliances are all dual fuel - I have also seen costs exceeding $6000 for this, which included having to replace furnace and hot water heater and large gas-consuming appliances.

Answered 5 years ago by LCD

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