How to drain high efficiency furnace condensate without an internal drain
We've had 5 estimates for a high efficiency furnace to replace our 30 yr old beast. Two guys said no problem. Then the final 3 raised questions about the condensate. We do not have a sump pump or utility tub in the basement for drainage. One guy said we couldn't vent outside because it would freeze ( we live in SE Pennsylvania), so we'd have to put a trap on one of the plumbing lines and divert it there. Second guy said no to the trap because it's against code and yes to going outside because only a short piece of the pipe would be exposed outside and freezing wouldn't be a problem. Third guy said we are not candidates for the high efficiency because of the drainage issues and we'd have to go with an 80% chimney vented furnace. We are more confused now than when we started. How can so many HVAC guys have differing opinions ( and two not even see a problem)? Not sure which direction to go..do we keep getting estimates until we get the majority to agree on inside drainage/outside drainage/80%? Any advice would be greatly appreciated.
Posted Oct 19, 2011 11:01 AM ET
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