Hot answers tagged

108

Stop, turn off the gas, ventilate the house, and hire a pro. If you applied teflon tape to a flare fitting, you are NOT the person to be installing your gas range. You fundamentally don't understand what you are doing, and doing this wrong can blow up your house. That tends to impair the "learn from your mistakes" method of learning. This is not the place ...


30

I have had similar problems in the past when running out, what I found is I had to hold the pilot for several minutes to get the lines full of propane again. I found it easiest to light the stove top or try until it would burn then I went to the furnace and water heater it still took a few minutes as the pilot is a very small draw but once the lines had ...


27

Kris' comment is likely a good reference. Consider to perform a test by operating only one device. If the duration of normal operation increases, or normal operation continues throughout the test, it's an indication of too-low temperatures preventing the tank from allowing evaporation. The backfire of the generator is another indication of insufficient ...


27

Let's learn about energy: BTUs. Put 1 pound of water (just shy of a pint) on the stove and stick a thermometer in it. Turn the stove on, and watch the water warm up on the thermometer. You're watching energy in action. Every 1 degree of temperature rise means you added 1 "BTU" (British Thermal Unit) of energy into the water. So if it's 62F and you're ...


25

Repeating the comments : Do NOT use any pipe dope or tape on flare connections . They are metal to metal seals and anything on the metal sealing surface can cause a leak. Pipe threads (tapered) require dope/tape to get a good seal. I analysed a house fire once and the primary cause was a leak caused by dope on a flare fitting.


24

Ask your propane company to check the gas pressure anywhere in the system and then fire all appliances in the system, the low pressure side (after the second stage regulator) should stay above 11 inches of water column on a water gauge. If it goes below 11 inches look for an obstruction in the gas piping. I am a service technician at a propane company and ...


13

My understanding of pilot lights is that they heat a thermocouple, which is a mass of metal that detects heat. The electronics behind that thermocouple will shut off the gas to the pilot if the thermocouple gets cold so that if something blows out the pilot you don't have a gas leak in your home. The side effect is that you have to heat up that mass of metal ...


8

As an HVAC technician, some of these answers you're getting are really bothering me. Do not wrap anything around your tanks, especially anything electrical. They are designed the way they are for a reason. You don't want those tanks holding extra heat in the summer. They need to be able to "breathe". I live in Canada and use propane as a heat source ...


7

Open the tank supply valve very slowly and make sure the weed burner valve is closed when you do it. I mean if you think you are opening it slowly you are still opening it too fast. Some of these newer tanks have a safety feature that cuts back on flow if high flow is detected. You may also have a tank with a defective valve, if the above method does not ...


7

From the look of the burn on the stove it is not to do with pressure. The flame would be short or lazy this is not the case. With this going on all at one time it is something in the gas. Propane CO use alcohol in the gas in the winter to keep things from freezing up. This will cause some deep red in the flame but this would not make them to soot up that I ...


6

Corrugated pipe is generally intended only to be used as the last connection to an appliance, in a living space where it not vulnerable to banging or jostling (usually behind or in a space at the bottom of an appliance), but where it can be seen and accessed if work is being done. It is not intended to be buried in a wall, where it could be pierced by a ...


6

This generally won't work all that well. While both large and small tanks contain propane, the large tank can deliver more propane to appliances than the small one can. Propane is supplied as a liquid under pressure. The pressure in a propane tank is pretty much an indication of its temperature, not the amount of propane in it. When propane is drawn off by ...


6

Everyone else is right. It’s supposed to be a metal-metal seal, so tape won’t do anything. Glue or caulking would not fix it, and trying to welding it or solder it won’t end nicely. Basically, Either the seal or a thread is damaged and you should get a professional to fix it. If not, your leak could not only destroy your home and possibly your neighbor’s ...


6

When I asked our builder and the gas supplier about this, I was told unequivocally no. None of them wanted to get involved in any way in allowing a homeowner to be able to fill a propane tank. I was told that this was a "safety issue". As has been typical, the people I was actually talking to don't know the code chapter and verse and so could not of course ...


5

You need a 3/8" female NPT x 3/8" male flare thread adapter. Any good hardware store or plumbing shop.


5

As others have indicated, there is a very real danger that you have damaged the fitting in an attempt to fix it. Further attempts to fix it can cause things to get worse. And you can solve the immediate problem, but have it corrode or fail over time. Even if you live in an area where you don't have to have a license to work on the gas connection, there ...


5

Reflection of radiant heat is what you would be after. If you could magically hang it, one of the best would be a metal surface above the fire reflecting heat back down to everyone. Using an upside down cone or pyramid shape, with the middle point centered over the burner and the angles set so that the surfaces would reflect the fire and heat (radiant heat ...


4

The short answer is all you need is a new orifice. The complicated answer is : don't do that. Ventless systems have been banned in various places, and come with significant hazards not fully mitigated by a carbon monoxide detector. Read for instance : http://www.energyvanguard.com/blog-building-science-HERS-BPI/bid/48762/Bob-Vila-and-the-Vent-Free-Gas-...


4

I usually encourage DIY projects, but when it comes to gas applications, I have to strongly caution you to consider using a licensed gas installer to connect an on demand water heater. Nothing in a home is more dangerous than gas and it MUST be installed correctly and pressure tested. Venting the exhaust is extremely important as well, and a mistake can be ...


4

Short answer is, because the 1/2" flexible tubing is short enough to not cause a major pressure loss. If you ran 1/2" line the whole way, it would be too much pressure drop. Pressure drop across a pipeline is a function of all the friction losses added together. These include "major" losses (the official terminology, not mine) from the friction with the ...


4

It sounds to me like a restriction at the regulator, not the control valve. You mentioned that the previous owner had done some work on it, make sure that he/she did not replace the regulator with one that does not deliver the design flow/pressure. In this case, adequate flow/pressure depends on proper regulator back pressure setting (they are rated in "...


4

Pull the oven burner and check for lint or any thing that could partially block the air inlet at the burner venturi. If you can see the flame, It should be blue and have a definite pattern not yellow and lazy. My last home had propane for cooking and the stove required more than normal maintenance. If the odor is a "burn your nose or eyes" kind of odor that ...


4

Those openings are the air inlet. The gas line ends in a small diameter opening that inserts into the burner assembly. The small gas opening causes the gas to flow out at a high velocity, which causes the pressure to be a bit lower at that point because of the Bernoulli effect. So instead of gas leaking out, air actually flows in to mix with the gas ...


4

https://algas-sdi.com/lpg/direct-fired-lpg-vaporizer/ Used to use all the time at -35-40c with 1000lb portable tanks


3

You'll need to look into your local code to find out if it's approved. Where I live, compression fittings aren't allowed for gas but flared fittings are. If you're not sure, you should contact a licensed gas fitter in your area.


3

Where is the tankless water heater to be located? If it is in a space that is heated, then freezing will not likely be a concern as there will be plenty of heat gain through the equipment enclosure. If freezing is still a concern, look for a tankless unit that has a electric element for freeze protection. This will use a lot of energy if the unit is located ...


3

When I first read this, my first instinct was "don't", and I think that still holds. You are mixing water, electricity and possibly natural gas in a single untested design, and if anything goes wrong your pool could drain out, you could get electrocuted going in the water, or you could even end up with a bomb. It's not worth whatever costs you'd save ...


3

If the house is unoccupied it's likely "winterized", which may include disconnecting the fuel tank. You'll likely have to contact the home owner or fuel supply company, and make an appointment for them to meet you and reconnect the tank temporarily. DO NOT RECONNECT THE TANK YOURSELF. If you do not own the property, it is not yours to muck around with as ...


3

If you are using the standard propane fittings and adapters, nothing else should be needed. Not tape, dope, paste, nor putty.


3

The short pipe you show is a section of tapered NPT black iron pipe. As a sidenote, there should not be pipe dope inside the pipe, the dope should only be on the threads. The section of corrugated pipe is most likely designed to connect to a flared pipe with straight threads. The required two adapters should have been sold with the pipe because it has to ...


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