Gas Leak? Natural Gas Furnace Help
Taylor McLennan
5 years ago
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Taylor McLennan
5 years agoRelated Discussions
Cost to operate natural gas furnace
Comments (15)I'm not going to do anything breakthru with my findings. I was just curious to see how much gas the furnace consumed during an hour's run time and then the cost per hour.I understand the cost is dependant on the price of gas . I did make a misstake when I noted above in the first posting that my furnace is 120,000 BTU. The furnace is 100,000 BTU. At first I was satisfied with taking the BTU input rating and doing my calculations from that. But maifleur made a good point that the BTU rating may not be an actual value. So thats when I needed to determine the amount of gas my furnace is actually consuming per hour. It ended up coming out to be about 94,000 BTU. ottawavalley...I understand that outside temp, thermostat setting and how well my home is insulated are factors as to HOW OFTEN the furnace will run. That wasn't my concern. I only wanted to know how much gas was consumed when the furnace ran for an hour. How that hour was achieved was not important. It could of been 60 continuous minutes or six 10-minutes cycles. My gas bill gives total units used in hundred cubic feet. As far as just looking at the bill for consumption, since I have a gas oven/cooktop, gas hot water tank and the gas furnace, just looking at the bill would not tell me how much gas the furnace used. Also my supplier reads the gas meter every other month. The months in between they estimate usage. Sounds like on your gas bill everyone gets a piece of the pie with all the different charges. My bill is broken down to a charge for gas consumption, a customer service charge of like $21 a month and of course the tax on the consumption charge. So it's pretty straightforward how much the gas costs per hundred cubic feet. This month gas was $.745 per hundred cubic feet. I've hooked up the following 24V hour meter to the gas valve: http://www.grainger.com/Grainger/REDINGTON-Hour-Meter-2PPV9?Pid=search The meter progresses in tenths of an hour increments anytime the gas valve is open. I can tell how long the furnace runs each day, month or season. This helps with filter changes also. I've found that about every 125 hours the filter is dirty enough to be replaced. I appreciate the comments....See MoreSeattle- Heat Pump/Gas Furnace vs AC/Gas Furnace
Comments (13)You should definitely be pricing with just heat pump. I live in NC which probably is a bit colder in the winter. We get down to the teens but only 15 nights a year maybe. Our winter average low is about 30. Under 10 degrees is definitely a news story. I have 5000 sq ft. I'm looking at my NG bill of $30. I have dual fuel and seer 16 heat pumps. Last winter was very cold and I spent about $700 with $200 being gas. This winter is going to be $120 in gas. My electric rates are similar to yours without the first 1000 discount. What is my point? Your gas usage will likely be $100 a year. Even if that were replaced with all heating strips, you'd be saving $200 a year or so. Since it would probable be 80% heat pump still, the dual fuel is only saving you $40 a year. So a $2500 furnace to save $40 a year seems a little crazy (on dollars alone). Turns out for me, it is probably worth it but only marginally so. I have a 90% (which you should be able to do as mine is basement with horizontal PVC exhaust). It probably saves $60-$70 on an average year. Probably cost $2000 (new house - I can't remember). What is that a 30 year payback (or never if you count interest or NG rates increase)? You do get some flexibility and you can setback at will with dual fuel. That is worth something....See MoreChanging oil fired steam furnace to Natural Gas
Comments (2)Why would you line your fireplace if you are replacing your boiler? You probably mean line your furnace flue. You may very well have to line your flue. High efficiency boilers don't exhaust much heat, and in a flue that's too large you could have serious problems. On the other hand, you may be able to abandon your flue altogether and go with a direct vent application. That will depend on the efficiency of the boiler you choose. And yes, lining your chimney can be expensive, but it's not a step that should be skipped....See MoreNatural Gas Leak in Emergency Shut Off Valve?
Comments (2)Removed old emergency shut off valve and capped the pipe off outside the house. Repressurized the lines inside the house and they held at 15 psi. Replaced the emergency shut off valve and placed it in the off position. Repressurized the guest house lines and everything is holding at 15 psi. I had to get the 1-1/4" valve at a plumbing supply house as Home Depot does not carry them. Moral of the story is these emergency shut off valves can leak internally. As to the question of why I pressurized to 15 psi to test the lines is because most building codes require it or somewhere around this pressure. If it holds at the higher pressure then most likely if will never leak at less than 1 psi. My problem is fixed...I hope this post helps someone else in the future....See Moremike_home
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5 years agoTaylor McLennan
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