The best furnaces are efficient. They keep a home warm and comfortable. They provide steady, dependable performance year after year. And they are quiet, long-lasting and low in service frequency and cost.
When a furnace loses or wastes heat, it requires more energy to keep your home warm. Some furnaces lose heat through the walls of the furnace cabinet. Energy-efficient furnaces like Rheem’s full line of state-of-the-art models significantly reduce this loss with a blanket of insulation that lines the inside of the cabinet walls.
When a gas furnace is not in operation, most send a steady, wasteful draft of warm household air traveling up the venting system and out the roof. The Rheem Classic® Seriesand Classic® Plus Lines – feature an induced-draft blower that works in conjunction with a hot surface ignition system to pull hot gases through the heat exchanger at a constant and controlled rate of flow. As the burner cycles off, the draft blower stops, keeping the heating air in the system.
Pilot lights also can be wasteful. The electric ignition in many of Rheem’s furnaces eliminates the need for a constantly burning pilot. This feature alone gives up to 6% higher efficiency. And in combination with an induced-draft blower, can improve furnace efficiencies by over 20%.
Most gas furnaces vent combustion by-products and gases by allowing the warm air to rise naturally. However, on occasion, proper venting of combustion by-products may be restricted due to blockage, deterioration of venting systems, malfunctions or other causes.
The Rheem induced-draft blower maintains a constant draft through the heat exchanger, which assures proper venting of the furnace combustion chamber. Rheem also features a pressure switch which continuously monitors venting; and in the event it senses a vent flow restriction, it will automatically shut down your heating system for your safety.
The most efficient furnaces tap the energy of the hot vent gases – which can reach temperatures of 500 degrees Fahrenheit, and more. The Rheem Classic Series® 2-Stage 90 Plus gas furnace does this by routing the hot gases through a secondary heat exchanger. This step captures the otherwise wasted heat—using it to preheat the household air—and delivers AFUE ratings up to 95%
A high-efficiency furnace generally wears a higher price tag, but it can make up the difference by reducing operating costs over the long run. And with today’s consumer interest in efficiency, such equipment enhances the bottom line of your home.
Definitely. Features to look for include heat exchangers that resist corrosion, direct-drive blower units, induced draft blowers, pressure switches, and an insulated blower compartment, which helps minimize operating noise.
You also should ask your contractor if the manufacturer of the brand you’re considering quality-checks and tests every unit before it leaves the plant.
And be sure to check out the terms of the Limited Warranty. Quality manufacturers put a convincing warranty behind their work. Rheem furnaces, which include all the features described here, offer one of the very best. Even the primary and secondary heat exchangers in the Rheem 90 Plus® are protected by a Limited Lifetime Heat Exchanger Warranty.
Not usually, on a cold night a heat pump’s outdoor coil will freeze and it must be defrosted to preserve the unit’s heating efficiency. During this process the system will shift modes and may make loud whooshing noises.
Check the settings on your thermostat. If you want heating, make sure the temperature control selector is set below room temperature and the SYSTEM switch is on the HEAT or AUTO position. The FAN switch should be set to AUTO.
Check the air filter(s) for your air conditioner and replace if necessary.
Check the breakers for your air conditioning system. There will be one for the indoor air handler/furnace unit and one more for the outdoor condensing unit. If one of them has been tripped it can be reset by first moving it to the OFF position and then back to the ON position.
Houses with a gas furnace can check to see that the gas valve on the side of the furnace is turned to the “On” position. If the valve was off reset the breaker to the furnace by turning it off then back on again to reset any fault on the furnace. This will allow it to try and fire again if there is a demand for heating.