Lennox offers its next generation gas furnace with the Lennox SLP98V Variable Capacity Gas Furnace that is rated at 98.2% AFUE by AHRI which is the air conditioning and heating manufacturers association that certifies the efficiencies of the manufacturers products. The Lennox SLP98V Gas Furnace is Energy Star rated because of the efficiency rating qualifies the Lennox SLP98V for the rating. For you to get this level of efficiency you must have the correct combination of equipment and components to go with the system. Other factors apply also such as good duct work and proper system tuning including air flow. The Lennox SLP98V Gas furnace has several features and components including:
- Variable capacity operation for the burners and the fan speed that modulates from 35% to 100% with control increments of 1%. Compared to the average single stage gas furnace the Lennox SLP98V gas furnace responds to the load or demand and modulates accordingly. If it is not so cold outside then the furnace will modulate to a lower setting and as the temperature gets colder it increases all the way to 100%. It is very important this system is set up by a factory trained technician to ensure it works as advertised.
- Lennox advertises the Lennox SLP98V is the quietest gas furnace on the market with a selaed blower compartment and insulated cabinet along with a quiet blower motor.
- As mentioned above the Lennox SLP98V gas furnace has a varialbe speed blower motor that is essential for the modulating furnace and with an air conditioner in the split system configuration offers better humidity control in the summer.
- The SureLight Control Board controls the Lennox SLP98V gas furnace and offers direct read-out diagnostics for easier troubleshooting if the need arises.
- The Lennox SLP98V gas furnace has a modulating variable spped inducer for efficient operation.
- A stainless steel secondary heat exchanger for good heat exchange and durability.
- The primary heat exchanger is made of patented ArmorTuf™ steel for reliability and efficiency
- A SureLight silicon nitride ignitor for durability and reliability
- The Lennox SLP98V gas furnace has a variable-capacity gas valve that gives the furnace the ability to adjust capacity
- A selaed blower compartment with sound absorbing materials allows the furnace to minimize losses and maintaining quiet comfort.
The SLP98V gas furnace also has other optional components and systems which will match other Lennox products including being used in a dual fuel heat pump system using the SLP98V gas furnace as the back-up source of heat. Other Lennox products that can be combined are the Lennox air purification system, Lennox air conditioner, and the iComfort thermostat system. Of course the Lennox SLP98V gas furnace comes with a Lennox warranty with an optional extended parts and labor warranty available from Lennox.

Lennox Variable Capacity SLP98V Gas Furnace Reviews
Heil is the manufacturer of the QuietComfort VS 95 Series gas furnace which the best and most efficient gas furnace that Heil offers. Heil is also owned by the same parent company that owns Carrier so there is some shared engineering and technology even though the companies remain separate entities. The Heil QuietComfort VS 95 Series Gas Furnace is Energy Star rated and offers some of the following features:
The Goodman GMVC95 Gas Furnace is Goodmans most efficient gas furnace that Goodman offers in their line of gas furnaces. Goodman Manufacturing builds Goodman, Amana, and Janitrol HVAC equipment including air conditioners, heat pumps, and gas furnaces. The Goodman GMVC95 gas furnace does offer a communication feature for people to communicate to the furnace via a special thermostat interface but High Performance HVAC is not sure about a possible interface with the Internet for remote control and monitoring. With a 95% AFUE the Goodman GMVC95 gas furnace will save you money on utility bills over the base model of gas furnace. Some features of the Goodman GMVC95 gas furnace include: