It sets on top of the fire box and the plenum set on top of that
on my honeywell gas furnace says aux heat is on when heat is on
Yes
Your location matters. If in Florida heat pump in more northern climes furnace & ac.
flame sensor
Central heat may run on gas, oil, propane, electric, geothermal or solar.
yes.
Natural Gas Sometimes referred to as forced air systems, these heating systems burn natural gas, propane, oil, or use electricity to heat your home, and are the most commonly used heating systems. Air is heated in the furnace and then distributed throughout your house via ductwork.
It depends on what type of central heating unit that you have. An electric furnace will drive the electrical utility bill very high. If it is a natural gas furnace, not a very high electrical demand just for the blower fan. A heat pump demand is just above a gas furnace but more efficient. Heat pumps usually have electric heating as a back up for the very cold days. Fan heaters are usually rated about 1500 watts and are a little inefficient to heat large rooms. They will probably be on more that they will be off.
The most important risk in using a gas furnace is carbon monoxide. If the heat exchanger in a gas furnace is damaged, carbon monoxide could leak into the air, causing a health hazard. A carbon monoxide detector and regular inspections would greatly reduce the risks and your worries in using a gas furnace.
When purchasing a gas wall furnace you should look for a variety of different features. These include a insulated blower compartment to reduce noise, heat exchangers that resist corrosion and ensuring the gas wall furnace won't lose heat and is energy efficient to save you money.
Yes,It depends if it is gas fired or electric.
Yes. Specially if you have a 90%plus condensing furnace. This furnace has two heat exchangers, which means that it uses the combustion chambers radiant heat as comfort heat, if the furnace is matched with a 2 stage or modulating gas valve, the savings can be between 40 to 60 percent savings on utility cost.