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QUESTION:1,900 sq ft split level CBS ranch, circa 1964, with a flaky natural gas
furnace, in the temperate Portland (OR) Metro Area.
Time to replace it. Currently, have a Lennox Conservator III G16,
Model: G1603/4-100-3, Input: 100,000 BTU/Hr, Air rise: 35-65 F, and
ducting to match. Only have 5,000 sq ft of lot, and drilling is not
practical, so practicality of a ground source heat pump doesn't seem to
be there.
If you have recently replaced your furnace, would appreciate hearing
how you did it and what you learned.
ANSWER: Easiest would be to stuff in a 90+ furnace, but I wonder if a DX heat pump
would not be a better choice, depending on your electric rates compared to
the price of gas.
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