It is not the voltage you need to be concerned with, it is the amp draw. What is the amp draw for the furnace? More than likely, you will need 12AWG or 14AWG.
Meet with your installer to determine the capacity of your new furnace. The furnace capacity should be matched with the size of the house. You want to get a furnace that heats a house without overheating the home. Because your furnace will be newer, it will take less energy to heat your home.
A general rule of thumb in estimating the size of furnace needed to heat a home is to find the square footage of the home, and multiply that by 45 BTU (British Thermal Unit). For a 3200 square foot home a furnace somewhere in the range of 144,000 BTU would be a reasonable estimation of the furnace size needed to heat the home. To find the most efficient furnace for any given home, however, it would be best to contact an HVAC professional who can perform a load-calculation.
To answer this question the size of the blower motor and the size of the ignition transformer must be stated. The amperage of these devices will be added together and multiplied by the voltage of the furnace to reach the total power consumption. Watts = Amps x Volts.
You take the size of your home in square feet and times it by how many rooms you have. A 70,000 BTU furnace will heat a house 1600 square feet.
1200 foot propane furnace what size do i need
The size of the furnace depends on the square footage of the house you are heating.
The length of wire needed will dictate wire size as much as amps and volts.
Heat load calculations need to be conducted for home to determine the proper size furnace. There is no simple answer to this question. There are a number of factors that can effect what size your furnace should be. Example: square footage, duct work size, insulation factors, windows etc. I recommend having a heating professional look at your home and conduct a heat load calculation. Over sized and under sized furnaces can cause you number out problems in the long run.
1'ooo,ooo btu effin furnace outta do the job..your welcome
how big of a gas furnace do I need for a 2 story 2300 square foot house in northwest ohio
It depends on the rating of the furnace. There should be a plate or sticker somewhere on the furnace that shows the rating. If you are just powering a blower motor the rating will be lower than if you have an electric heating element.
Many variables but for normal conditions 100 btu will be plenty
67,500 BTU electric furnace
form_title= Outdoor Wood Furnace form_header= Stay warm with an outdoor wood furnace. What is your budget for a furnace?*= _  What size furnace do you need?*= _  Where will the furnace be installed?*= _ 
Too maby variables here but heating and AC supply sites have the formulars. Look for it.
The Diameter of Submerged Arc Furnace depends on the size/capacity of the furnace. For a 10MVA FeSi Furnace the diameter of the Furnace Shell is typically - 7500mm. - Vaibhav Furnaces
1.furnace is smaller than kiln in size. 2.melting takes place in furnace but no melting takes place in furnace.
it depends on how tight is ur home if it is well sealed you can size down if not ur going to want to size up on ur furnace usually a house that size is going to use a 65,000 or 70,000 btu furnace. other stuff you want to look at is ur house a 2 story or 1, does it have a basement, drafty entry way, how many windows, is ur duck work sized properly meaning each room has a cfm, for sizeing registers its 120cfm per register. if you acually do the math it runs to about 58,200 btu furnace by HVACbuddy
It could have any size heating furnace, the two are unrelated except for the size blower used in the furnace to support the 3 ton cooling system. But the fact remains you can get a 3 ton blower in 50,000 btu furnace, a 100,00 btu furnace and anything in between.
To calculate the current the equation is Watts divided by Volts. 3600 / Volts = Amps The current should be less than or equal to 80% of the Breaker Size. For example a 30 amp breaker should carry no more than 24 amps continuously.
I furnace was installed when the house was built in the 60's. The furnace has a wire basket, which I have to by the filter, cut to size and replace. My question can I use a regular air filtr for my furnace.
2.5 tons at least but you have so many other factors to consider.
Usually a 3 ton - 70,000btu furnace.