Latest threads in HVAC Discussionsshow only best voted threads

Subject Author Posted Replies
 
hvac
My goodman furnace/ air has been having unusual delays, on days where I switch between heat and air. The thermostat seems ok, at least I can hear the relay switch, sometime waiting a couple minutes. I...
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Any Rheem/Ruud experts here?
My Rheem furnace (RGFD) control board has a switch to 'enable' HIGH SEER operation (used for 16+ SEER units). Does this switch (ON) increase airflow above the set (DIP switches) amount? If not, what...
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Saw a commercial Icebank Air-conditioning System in Branson, MO last week
125 ton Trane air cooled chiller sitting on a slab circulating glycol thru 8 large storage tanks next to the chiller . The chilled water was pumped under the parking lot to a couple of very large...
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Type B (B-vent) chimneys and HVAC contractors
I have an ongoing chimney issue. My existing 10-foot above-the-roof-line masonry chimney has to come down because it is in bad shape. I would like to take it down to near the roof line (to maybe 1 or...
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Do HVAC contractors do "just" chimney lining/B-vent work
I have an ongoing chimney issue. My existing 10-foot above-the-roof-line masonry chimney has to come down because it is in bad shape. I would like to take it down to near the roof line (to maybe 1 or...
 
Central heat and air keeping coming on randomly...
I had a "hard" power outage a couple of nights ago and all the sudden the blower keeps coming back on randomly, even though I have the Honeywell controller in the off postion (between heat and air)...
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What's the deal with natural-gas-powered air conditioner compressors?
With the cost of electricity going through the roof (and with nat-gas prices at rock bottom) - are there any cost-effective nat-gas-powered A/C compressors available for the residential market in...
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Natural Gas HVAC
With natural gas pricing getting so low and looking to stay below $3 per Mcf for a long time, has anyone managed to come up with a good HVAC system run by natural gas? I am aware of hybrid systems...
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NFPA E70
Darwin in action.
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best Automation& PLC Training in Coimbatore
 
Call from clueless
Carla "Did you get the emailed work order this morning?" Chris "Yes, I replied to George, and we've sent several emails back and forth. Carla: "Will you be able to do the job today?" Chris (standing...
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vent portable heat pump through vertical flu?
To what height would a portable air conditioner / heat pump lift its vented-out air through a vertical flu?
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Oil Boiler flu draft regulator/damper question
SETUP: 2001 Burnham V83 Boiler oil-fired, feeding hot water to 8 cast-iron radiators WW1 vintage. Mounted on top of 6 cinderblocks approx. 6? above basement floor, boiler is approx. 2? away from...
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How To Tell Which Friedrich Units Use R22 / R410
I wrote Friedrich asking how to determine (by model number) which of their legacy window units use R22 / R410 respectively and this was the reply. I though it might be useful to some; "As with all...
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Husband explains math problem to wife
This guy tries to explain a simple math problem to his wife, but she has a slightly different understanding. Mikek
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