This furnace uses natural gas to operate. This is a high efficiency model with a fuel utilization efficiency rating of 91.4 percent. It has an input capacity of 60.000 BTUH and output capacity of 57,000 BTUH. Because of this furnace is energy efficient, it qualifies for the Energy Star program. It features a down air flow configuration and single electrical phase. This unit is a condensing furnace which means that the gases from its initial combustion are coursed through the pipes to give out more heat. Check out this furnace at furnaceocmpare.com.

RUUD UGGD-07EMCKS Furnace:

This furnace is a good replacement to your old residential furnace. It is a high efficiency unit, thanks to its 92.4 percent fuel utilization efficiency rate. It uses natural gas to produce an input capacity of 75,000 and output capacity of 72,000. This unit has a down air-flow configuration and single electrical phase. This furnace has a condensing combustion thus it needs draining to discard the condensed water which is quite acidic. This furnace under model number UGGD-07EMCKS is available at furnacecompare.com.

RUUD UGGD-09EZCMS Furnace:

This is another natural gas-powered furnace available at furnacecompare.com. It has a fuel efficiency rating of 92.2 percent, an input capacity of 90,000 BTUH and output capacity of 85,000 BTUH. This Energy Star-qualified furnace has the ability to capture the heat during the condensing phase. However, you need to drain the condensed water because it is quite acidic. This unit has a model number UGGD-09EZCMS.

RUUD UGGD-10EZCMS Furnace:

This highly efficient furnace with 91.2 percent annual fuel utilization efficiency retails under model number UGGD-10EZCMS at furnaceconpare.com. The input capacity of this unit is 105,000 BTUH while the output capacity is 99,000 BTUH. It is available in down air flow configuration with condensing combustion type. The condensed water generated by this furnace, and all condensing type furnaces, should be discarded because they are acidic.

RUUD UGGD-12ERCMS Furnace:

Selling under the product name FURN/Achiever 90 Plus and model number UGGD-12ERCMS, this furnace boasts an input capacity of 120,000 BTUH and output capacity of 113,000 BTUH. Adding to the advantage of this furnace is its 92.4 percent fuel utilization efficiency. This high efficiency condensing furnace generates gases by initial combustion and pushed them through pipes to give out more heat. When the gases cool, the water vapor will then condense into liquid water. Find out more about this unit at furnacecompare.com.

RUUD UGLH-05EAUER Furnace:

This mid-efficiency furnace uses both natural gas or liquefied petroleum gases. It has a fuel efficiency rating of 81.5 percent. This furnace has an input capacity of 50,000 BTUH and 41,000 BTUH output capacity. This noncondensing type of furnace has a down air flow configuration. You can view this furnace under model number UGLH-05EAUER at furnacecompare.com.

The Internet is where you can find more Ruud furnace models as well as other contemporary furnaces under different brand names, features and prices. Many manufacturers are offering limited lifetime warranty on their products.