Purchased two Water furnace Envision units (6 ton for downstairs and 5 ton for upstairs) for our new home in 2007 ($40,000). The 6 ton unit has been a problem since the day we moved in.
It works great for about 6 months and then breaks. I have spent over $4,000 in non warranty covered labor cost on this unit. If you add the value of the warranty covered parts you are over $8,000. Basically, I spend $450 per year in repair cost that must be overcome before any utility cost savings.
Meanwhile the upstairs unit hums along trouble free going on 9 years. I definitely would factor in the extra upfront cost, additional repair cost and frustration from system downtime before making a decision to spend the extra money to go Water Furnace.
Reason of review: Bad quality.
Monetary Loss: $25000.
Preferred solution: Let the company propose a solution.
Waterfurnace Pros: When it works.
Waterfurnace Cons: High rate of equipment failure.