Mix Matched Heat pump
Mix Matched Heat Pump in Skagit County.
When it comes to heat pumps a lot of people don't fully understand that you still need a 2nd source of heat. A heat pump will only work down to about 32 degrees, after that we need to switch over to an electric, gas, LP or oil furnace. In some cases their existing furnace will work just fine, and if they/we get lucky we can even install the HP coil directly into their furnace, such is the case here.
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.
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.