I had a WF premier AT furnace installed in 1991. It runs on open loop (well water in and discharge water goes into a pond) and I saved a lot of money every year compared to baseboard heaters.
I don't use it much in ther summer for cooling since I don't mind the heat. Last year, the capacitor on the compressor failed, it was replaced and the furnace worked for one season and this year the compressor finally went dead. I have had good use of it for more than 25 years. The fan worked all this time without a drop of oil and still works good.
There has been no leak at the coil. Looking at the other reviews on this site I relized how lucky I was.
Now I am trying to decide whether to just replace the compressor or get a new unit. Any advice?
Review about: Waterfurnace Furnace.
Reason of review: Good quality.
I liked: Very reliable.