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There is a thermostat inside an accessible panel on the hot water heater. The panel is typically secured by two screws. When the temperature goes below the set level the heater turns on. You'll either see a specific temperature or just an adjustment that says hotter. Some installations have an external timer that might turn off the hot water heater between midnight and 5AM, for example.
This is based on the model and MFG of the heater, contact the MFG, or look at the one that is installed and the size is usually on the outside head.
The typical flue gas temp at the inlet to the air heater is about 650-750 DegF range.
Because the heat from a heater is already in the lowest from of energy possible, physical heat at only a few degrees above the ambient temperature.
How long it takes a car heater to warm up depends on the temperature outside. In cold weather the heater can take several minutes to warm up.
with your hands, jk but on my car you usally hold down the button that shows the outside temperature
That's going to depend on - the beginning temperature in the room, before you light the heater - the relative humidity inside the room - the height of the room, floor to ceiling - the rate of heat loss ('R'-value) of the floor, ceiling, and walls - the temperature outside the room - the means of air circulation in use inside the room. In general, unless the temperature outside the room is 120 or higher, you can never turn off the heater for good.
Defective heater temperature control valve.
This depends on other factors. What is the outside temperature? What do you want for the inside temperature? How tall is the house? How is it constructed?
The sesor is no good , it must be replaced. Same happened to me. my heater would not go on because outside temp said it was warmer than interior
The heater core may be plugged or bad. You can either flush the heater core and the 2 lines running thru the firewall to the heater core or you can replace the heater core.
Yes, as long as you connect the incoming and outgoing heater hoses that were connected to the heater core together. You will not have a functioning heater or defroster but otherwise it will be fine to drive.
The heater fan ONLY blows the air, it does not make the temperature of that air. Your heater temperature controls how hot the air is. Adjust your heater temperature for hotter or cooler air.
No. Not if it's functioning correctly.
When the temperature is 47 degrees, NOTHING is in danger of freezing !
Because the resistor between the heater swithch and the heater motor is not functioning. Usually mounted on, in or near the heater enclosure. Its a common repair, and can be done by the do-it-yourselfer.