Mix Matched Heat pump

American Standard With Lennox

In this case of a mix matched heat pump we have an older Lennox electric furnace (that's in great shape) with a 3 ton blower. This furnace was designed to have a heat pump or air conditioning coil installed directly into it. There is actually a rail system setup and a filter system designed for the coil. Of course it was originally designed for a Lennox coil.

Fitting In The New Coil

The trick to fitting a coil into an older piece of equipment is the physical size of the coil versus the space it goes into. We also have to make sure the existing furnace can actually produce the air we need for the new system. Years ago our coils where much smaller, the reason they grew in size was because of efficiency, the larger the coil the more efficient the system can get. And with today's minimum standards the coils are much larger.

All Working Great

We where able to find an American Standard heat pump coil that fit (with a custom modification to the rails) into the existing Lennox furnace. The new American Standard heat pump(mix matched heat pump) matched up to the coil and the Lennox furnace produces more than enough air. With a few modifications to the control system and a new Honeywell thermostat we had that old Lennox electric furnace turned into a full heat pump system.

Conclusion

We actually saved our customer a lot of money by not selling him a complete system rather converting his existing furnace to a heat pump. He will see his bills drop dramatically and of course he gets air conditioning.