HVAC questions and shared experience.
Miracobalt27
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Topics and replies this member has contributed.
RE: Could restricted ductwork be causing uneven temperatures and short cycling?
One caveat before blaming the heat pump: a closed bedroom door can pressurize the room if there’s no return path. That backpressure can reduce supply airflow, leaving the room cold while the central area satisfies the th...
RE: Repair an aging heat pump now or plan a replacement?
Another item I’d put on the contractor checklist is refrigerant diagnosis. Before approving a recharge, ask them to verify the charge and perform a documented leak test, including where the leak is suspected and what rep...
RE: Should a replacement heat pump be smaller than the old one?
I agree with requesting the load, equipment-selection, and airflow documentation. I’d also have the proposal state the unit’s **latent-capacity performance** and the expected indoor humidity under representative summer c...
RE: What is a reasonable installed cost for replacing a 3-ton heat pump?
Yes - assigning responsibility for airflow and duct corrections is important. I’d add the electrical scope to that same section of the quote. Have each contractor state whether the price includes the disconnect, breaker ...
RE: Repair an aging heat pump now or plan a replacement?
I’d push back on letting the proposed policy changes drive the decision. Until a rule is final and has an actual compliance date, they’re too uncertain to outweigh the practical factors in front of you. I’d look at the ...
RE: How often should a residential heat pump be professionally serviced?
One small qualification: brief frost on the outdoor coil during heating is often normal, especially in damp, cold weather - the unit should remove it during its automatic defrost cycle. I’d call a technician if the ice r...
RE: What is a reasonable installed cost for replacing a 3-ton heat pump?
One detail I’d add to the quote-comparison list: ask each contractor to document the installation and commissioning limits, not just the model numbers. Specifically, have them state the permitted line-set size and length...
RE: How often should a residential heat pump be professionally serviced?
Twice-yearly professional checks are worthwhile when the heat pump runs heavily for both heating and cooling - typically a spring cooling check and a fall heating check. Annual service may be enough for lighter use, prov...