Gas Furnace Sizing Guide

Sizing a gas furnace calls for knowing your home and its winter needs.

Gas furnace sizing guide.

He was also very helpful about suggesting ub putting a drain safety switch for the furnace humidifier. Use our guide to size up your home to find the perfect furnace. Use the lower of the. Next if you need to calculate the output you need on a gas furnace simply multiply its efficiency by its listed input rating for the btu output of heat.

Then to calculate the output on a given gas furnace. If a furnace is listed with an input rating of 100 000 btu s and an efficiency rating of 80 it would produce. He also recommended putting an electric switch in the furnace room so i don t need to have to connect to external electrical outlet he also recommend i get another co2 detector for the mid level. If the furnace you selected is more than 10 below your heating requirement.

Most furnaces are offered in 15 000 20 000 btu increments so you just need to get close in terms of sizing. Residential gas furnaces are available in a number of sizes and are measured in british thermal units or btus per hour. An example you can reference. That means the furnace will produce 80 000 btu of heat.

Schedule an appointment request a quote online. A btu is equal to the amount of. 100 000 btu input x 80 efficiency. Getting the right one.

How to determine proper furnace size. For example a furnace with an input btu can have an efficiency of 80. How to estimate a gas furnace size. Different furnaces of the same input btu have different efficiencies measured in percentages.

If all your technicians.