Recently bought an older home. Had HVAC guy come in to tune up furnace. It's fine. Summer AC tune up is several weeks away because they are busy. I have a lot of questions.
1. What is a 1-stage furnace or a 2-stage furnace or how ever many there are? Is one better than the other in some way? (I think he said mine is one stage.)
2. The furnace we have now seems very noisy. HVAC guy said trane is a noisy furnace, or maybe this particular trane is noisy. Is there such a thing as a less noisy furnace?
3. If the furnace and the AC are both old (12 years) and one dies, is it better to replace both? It seems the original owners never did any preventative maintenance on either of them.
4. It's been very hot for a few days. The AC kicks in when the thermostat still says it is already cool enough in here. It runs for variable length of time, anywhere from 3 minutes to 10 minutes. Shuts off. Kicks in again soon. All this time, the thermostat reading of current temperature does not change. Why is it kicking in when it is set to 74 and the temperature is 74?
5. If we do decide to replace, are there any improvements in HVAC on the horizon we should be looking for?
6. Are home energy audits worth the price? Can they be done in the summer? (I live in Michigan.)
Thanks.
1. What is a 1-stage furnace or a 2-stage furnace or how ever many there are? Is one better than the other in some way? (I think he said mine is one stage.)
2. The furnace we have now seems very noisy. HVAC guy said trane is a noisy furnace, or maybe this particular trane is noisy. Is there such a thing as a less noisy furnace?
3. If the furnace and the AC are both old (12 years) and one dies, is it better to replace both? It seems the original owners never did any preventative maintenance on either of them.
4. It's been very hot for a few days. The AC kicks in when the thermostat still says it is already cool enough in here. It runs for variable length of time, anywhere from 3 minutes to 10 minutes. Shuts off. Kicks in again soon. All this time, the thermostat reading of current temperature does not change. Why is it kicking in when it is set to 74 and the temperature is 74?
5. If we do decide to replace, are there any improvements in HVAC on the horizon we should be looking for?
6. Are home energy audits worth the price? Can they be done in the summer? (I live in Michigan.)
Thanks.
source https://hvac-talk.com/vbb/threads/2239310-newbie-with-HVAC-questions?goto=newpost
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