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There is approx 100,000 BTU per gallon of propane. A 100 lb propane tank holds approx 23 useable gallons. So that is 2,300,000 BTU. If the heater ran constantly burning 25,000 per hour that would be 92 hours straight.

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Q: How long will a 25000 BTU heater run on a full 100 lb tank?
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How long will 30000 btu heater run on a 23 gallon tank?

The MH80CV, part of the Mr. Heater Contractor Series, is a 30,000-80,000 BTU Propane Convection heater. The MH80CV provides reliable heat for areas up to 1900 sq. feet. It will operate for up to 14 hours on a 20-lb propane tank. The MH80CV features a standing pilot, piezo push-button ignition, and 'insta-lock' chamber for easy assembly. The MH80CV comes ready to use with the included hose and regulator. It operates on a 20-lb or larger propane tank (not included).There are a couple of other factors that may effect the time a 20 pound cylinder will last on a heater. Propane is stored in liquid form in the tank and must evaporate to be used in most heaters. The colder the temperature the propane tank is stored at the lower the pressure is in the tank. As the liquid propane evaporates it cools down the liquid propane still in the tank. As a result at minus -20 you might have a half full twenty pound tank and not have enough pressure to run the heater.


What is electric water heater which used in house?

An electric water heater in a hot tank is called an immersion heater and many of those run at 3 kW with a thermostat to control the max temperature. Power showers use a type of water heater that heats the water at the point where it is used, without a tank. They run at 6-8 kW and are also controlled by a thermostat.


What size breaker is needed for a 220 v hot water heater?

The wattage of the water tank is needed to size the breaker and the wire to feed the tank.


How do you find water tank capacity?

1 meter high, 1 meter wide, 2 meters long. The tank is only half full of water.


Is it safe to hook 220 water heater up to 110?

It will not work. It will work, but you will only receive 25% of the rated output of the tank. A 3000 watt heater will only product 750 watts at 110 volts.

Related questions

Is it better to keep your gas tank at half or a full tank?

For long term storage, keep it full.


Why should the immersion heater be placed at the bottom of the storage tank?

It gets warm but only if the immersion heater is switched on. The warmer water will rise slowly and start circulating in the tank, so you end up with a tank full of hot water.


Can guppies live long in a 2.5 gal tank with a heater?

yes, they will live 2-3 years in tank like that.


How long does it a fish tank heater tank to heat the tank?

It all depends on how much the tank holds and the wattage of your heater I like to have 10 wattage for ever gallon so if you hVe a ten gallon tan you need a 100 watt heater also the temperature of you want will make a deference normally my 20 gallon tank can go from 46F to about 77 F in two hours


Will a portable propane tank operate a tankless water heater?

As long as the heater is made for propane.


How long does it take for tank water to heat up without a heater?

Tank water will slowly warm to ambient temperature. It will not get any hotter.


How long does it take for a heater to heat up the water in your tank?

Less than 3 minutes! It shouldn't take that long


What do you do if your Betta fish tank is too small for a heater?

If your tank is too small for a heater it's too small for the Betta. The answer is simple. Get a bigger tank. A male Betta needs a heater, a filter, a light and living plants to be healthy. It grows to about 2 inches long so that means it needs at least 2 gallons of water ie a 3 gallon max capacity tank.


Should you have one or two heaters in your 4ft tank?

Visually it is more appealing to have only one heater. A four foot tank isn't too terribly large, so as long as the heater is placed in an area where the water flows around it, then one heater should be sufficient. Ideally, you could use an in-line heater, if you have a canister filter.


Is the glass a lining inside the tank of a water heater?

yes and when it breaks your water heater will leak when the steel tank rust.


Is an expansion tank required for a tank less water heater?

No, an expansion tank is not required.


The heater in your aquarium broke what shall you do?

Not sure what you are asking here, broke as in not working? or broke as in pieces of glass are in the tank? If the heater is not working, you need to purchase a new heater. If the glass tube is cracked or broken and pieces of glass are in your tank, then you need to unplug the heater and remove the glass from the tank.