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This depends on the type of furnace system you have. A forced-air furnace should be completely independent of the water system. An older, convection-based (no pump) hot water system will have an expansion tank, and will not need to have the main water on, except to replenish the system, which should happen infrequently. A closed-loop system could possibly over-pressurize as the water is heated, with the mains valve closed, and would trigger the pressure relief valve, dumping a few cups of water every time the furnace cycles until the system was dry; eventually, with the pipes in the furnace dry, the furnace heat would melt and destroy them.
Wiki User
∙ 11y ago
Wiki User
∙ 10y agoYes, there should be a shut off valve at the heater.
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How does one clean a furnace air filter?
There are 5 main steps in cleaning a furnace air filter which you must follow. The first thing to do is turn off the power of the furnace. Next, you must locate the air filter as you may have to unscrew some panels. Thirdly, you must remove the dirtied air filter by sliding it out of the housing. After this, you have to wash the filter with a hose until the water going through it comes out clear and leave it to dry. Finally you must slide it back into the furnace and turn it on.
How do you keep your furnace off?
Turn the thermometer switch to offTurn the electrical service switch by the furnace to offTurn off the main breakerAfter turning off the main breaker disconnect the power line to the furnace
What is the quickest and easiest way to save money on energy bills?
tune up your furnace, turn down the water heater and don't leave lights on when you exit a room.
Is it better to turn the furnace off or leave it on?
Obviously a furnace - or indeed any other appliance - will use no energy at all if it is completely switched off. If you don't want to spend any money on heat energy then of course it is "better " to turn the furnace off. It depends what you mean by "leave it on": even if you leave the electricity and gas on, (or oil if it's an oil burner), if the temperature of the room or building is high enough to make the air-termperature thermostat switch the furnace's burners off, the furnace won't actually be running and consuming very much energy. All the furnace would consume in that condition is a few Watts of electrical power to supply its control circuit and maybe a few Watts more to drive a water circulating pump for the radiators, if that is how your system works. Of course you could turn the furnace's main control switch "off" so that the furnace will stay off even when the air temperature falls enough to cause the control thermostat to switch over to put the furnace's burners on... Then you would save a few Watts of energy but would lose the convenience of having the furnace heat your home and water automatically. Instead you would have to switch the furnace on yourself every time you wanted some heat. So, do you want "convenience" or "inconvenience"? It's up to you to decide...
Can you turn off water to oil furnace and use an electric water heater in its placethe furnace supplies hot water and baseboard heatbut i have a pellet stove to heat the houseso i would like to use?
Yes you can do that. I had an oil fired furnace that also heated the hot water in a coil inside the furnace. I got an electric hot water heater and had a plumber disconnect the coil in the furnace and hook up the electric hot water heater. No problems after four years.
If you have baseboard heat and your boiler runs off the furnace can it turn off the furnace without hurting anything to save on oil you realize you will not have hot water?
have baseboard heat boiler runs off furnace want to shut off furnace to save oil will it hurt anything
Can you turn off the water supply to the furnace for a few weeks and still get baseboard heat?
If it is a hot water system and not steam, once it is properly filled & bled of air no more water should be needed unless there is a leak. Regardless of whether it is steam or hot water it is a Boiler not a furnace.
How is oil used to form electricity?
Oil is burned in a furnace as fuel to produce heat. Running through the furnace is a series of pipes containing water. The water turns to steam with the heat - which is then used to turn turbines. The turbines generate the electricity.
Why is the heat and air system only working on emergency heat?
when running the heat-pump the air blowing from the heat ducts is not hot ( it's to cold for the heat-pump). you have a main furnace and it won't turn on ( is thermostat selected for this source), ( is the power switch for main furnace on ), ( is fuse for this furnace good). If these are good (check thermostat wiring at thermostat, and transformer).
How do you turn furnace on without thermostat?
turn breaker off. unhook thermostat wire to furnace turn breaker on. worth a try; if it works you will have to turn off breaker to shut it down.
Why do The pipes keep banging while the water is running?
air in the water lines causes banging and whistles/screams. Turn off main water, turn on the faucet, turn main water back on, and it should force the air out.
How do you turn the hot water temperature down on your furnace?
Every hot water heater I've seen has a regulating knob somewhere. Look for it,possibly under a cover.
