- Looking for new boiler. Mod v Non & Alum V Cast Iron xchange
- unit really working???
- Please! Need immediate help with apartment AC problem!
- Should Rheem System run all day?
- confused on filter size for heat pumps
- Rain Barrels Collecting Air Conditioner Condensation?
- Draft inducer motor casing oxidizing/rusting with heavy a/c use?
- Is this a bad txv
- Tribulations of changing a thermopump
- help with a janitrol a/c
- Does water in the chase really affect superheat?
- Setting Back A/C Worth it?
- HP or Electric heat
- proper conditions for ac charge
- Carrier Stage 1 cooling problem and a long story
- Thermostat question- When turn on?
- AOP Residential .vs. Residential????
- what is best way to perform leak check?
- Clueless in Manhattan
- HVAC Tonage question
- Question on proper Thermostat Placement (floor plan attached)
- Job Outlook/transition Overseas
- White Rodgers Thermostat 1F95-1291
- equalizing pressures
- Can you tell by this photo if this was added
- Carrier Condenser Unit Screwed?
- Coil water leak issue.
- No gauge ports....
- New AC~Noisy Vent Cover
- How many tons is my unit?
- New Condenser and Coil, now new blower?
- Cannot Check Oil Pressure
- How cool am I?
- Nordyne JT4BF-KA Series Heat Pump Sub-cooling Specification.
- RiteTemp 6036 issues
- Apt Central air has no duct work
- New lennox system
- Thermostat Adjustment Carrier Room AC
- No Ductwork for Package Unit ?
- New compressor, still won't work
- basement Central AC or dehumidifier
- Internal overload (herm)
- 2 ton to a 2.5 ton...
- 10 MONTH OLD TRANE FREEZING UP
- normal for a lot of condensation on ducts?
- What is the best way to heat/cool a bedroom above a garage
- 3 tons central a/c unit??
- high suction low head
- hyperion air handler
- Thermostat that reads x.5 degrees
- New 3.5T 14 SEER 2000 CFM less eff. than 3.5T 1600 CFM high ESP?
- Attic Fan - Useful?
- Insulation, Humidity and Condensation
- Wireless Thermostat for PTAC
- Thermostat 7 Degrees Off
- Trane TWJ736A100A0
- How Do You Ensure Quality of Installation?
- Reverse chimney effect?
- Important for Concrete Base for Compressor to be Level?
- 22 mixed with 410
- What is a balanced refrigeration system?
- Old Coil vs New Coil
- air handler start up noise
- Evaporative/Swamp Cooler as Cooling Tower
- Anyone know Daikin Install in Cincinnati?? (ohio)
- Coleman II heat pump size?
- Return duct balancing question
- Tempstar unit
- Bryant Evolution SYSTXBBUID01-C
- OK to replace a fried condensing unit with different brand/type?
- Premature Coil Failure and other ?
- Janitrol ck30-1T Disintigrating
- Mini split control wire - help please!!!
- "Hack" in a return vent for upstairs room
- Design Temp for Montreal
- Looking for a 30*30 filter....
- Dirty Sock Syndrome
- residential load calc software
- trane compressor change out
- do anything different?
- float switch
- High Superheat After charging R 22 unit.
- scroll compressor snap and hiss
- Dade/Rheem Unit Compared to Goodman - Is the Goodman Bigger?
- Humidifiers and Ductboard.
- Replacement Packaged Unit Sizing with some caveats
- Questions on upgrading from a 2.5ton to a 3ton AC Unit
- AC must have gone out We're sittin at 82 degrees inside townhome here in Florida
- Opinions on Carrier Models - Please help!
- Thermostat trouble
- Does CFM dictate system design?
- To change or not to change Compressor?
- What are my options? (filter related)
- How Common Is This? -- Dishonest AC Repair Service
- What size Rheem do I need?
- Outside unit ripped off
- CFM- Return duct size
- Can a condenser be replaced on a Natioal Comfort unit?
- leaking r22, repairman just put more freon. What to do now?
- Arzel Zoning 1st Floor and Basement
- Weird
- Do I have too large of a unit???
- just trying to get by for now
- AC installation Help/Advise Please
- Warm air blowing from central A/C
- Great building science blog - Energy Vanguard
- A/C Evaporator water leaking problem
- 2weeks old systems not cooliing
- Anyone use a homemade coil cleaner?
- rheem classic RAND JAZ leak
- wet drain line
- Capacitor installation mistake
- Carrier Comfort Zone vs Honeywell Envirazone vs ??
- 2 Year old Duplex APPROX 1100 SQFT not cooling off
- Any help will be appreciated
- Hot air cloud from long ductwork
- Circulator on air handler too loud. can I turn it down?
- Return air
- No cooling at night?
- Bryant air conditioner broke again
- Return trunk possibly undersized
- Dehumidifier Honeywell TrueDRY™ DH65 installed
- 13 vs. 15 SEER quality? Aprilaire? Programmable t-stats?
- HELP PLEASE
- Lennox 14ACX - Fan Motor overheating
- Spacepak condenser question
- Carrier 58MVB vs Lennox SLP 90k BTU
- Whirlpool Blower motor replacement
- Determine Friction loss
- Compare York LX with Carriar Base or Payne
- Oversizing multistage
- txv 410 units
- water heat 2-zone system issue
- Tech w/question
- How to measure HVAC efficiency (SEER rating)?
- Mismatched system only 10 deg diff please help!
- MOLD ON A/C REGISTERS
- Tadiran ductless split remote control
- Modular Home HVAC
- New unit Jackhammer noise. Need assistance for a guest.
- Just Had Compressor Replace, but Problem
- changing from seer 10 to 13 question
- Did I get what I paid for?
- Add Second Zone or Room Split system(s)?
- Geothermal A/C setback
- Weird problem on new install.
- New House - Going crazy deciding on HVAC
- Gas furnace blower compartment discoveries
- Excessive Condensation on duct work after A.H.
- compressor and indoor fan motor?
- Thermostat to use on new trane system??
- I need advice
- trane xl16i 2 stage, high humidity
- Desuperheater? worth the trouble?
- I could use a second opinion
- HAIER HWF05XC7-2
- Advice on New Bryant Furnace
- Carrier Infinity Thermostat Question
- RUUD hates me!
- Suction line accumulator vs. pump-down with hard start kit
- Ton to Square Foot rule of thumb?
- Need help choosing new system
- Duct sealing worth the cost? Plus new unit install options advice
- Bet no one can answer.......
- Question of Contractor's liability for leak damage after AC unit install
- High efficiency furnace exhaust direction
- Need Support
- Carrier Comfort Zone II versus Infinity
- Gas furnace exhaust vent options
- Help on a Bryant fault code
- High Suction presure
- Damage on new Carrier Infinity 20 heat pump
- Cold Climate heat pumps
- Lennox Pureair Metal Catalyst
- evaporator fan capacitor
- CFM question!!!!
- Suction Line Inaccessable
- Need feedback on Brinmar AC cover and sound blanket
- Proper Thermostat Setup w/ Lennox SLP98V and Trane XR11
- Seer help
- Plenum size too small for AC?
- Low charge or something else?
- Trion or Honeywell HVAC Humidifier?
- air temp difference at different registers
- Questions on new Install
- OK so I am a noob and a little insane!
- A/C unit not working after fix. whats my next step.
- Honeywell Thermostat displaying -ac?
- Help choosing a furnace
- Rheem vs. Tappan
- WaterFurnace compressor failure
- Fedders Hot Box
- not enough refrigerant - will this damage heat pump?
- Basement suite - Dehumidification options?
- Heat Anticipator Setting - Does this affect AC Cycling?
- swapping a compressor
- Outside Condenser Question (Cool Air Blowing Out)
- how long does it take?
- High Humidity on 2nd Floor
- A/C Lennonx XC13 doesn't start
- subcooling readings different every time at random times and random days
- Damp crawlspace
- Making sure the blower motor is good
- Return Air Grille Size/Installation
- Filter grill size vs filter thickness
- Evaporator Coil for Carrier 38CKC-024340
- New AC unit not cooling below 81 degrees
- A/C Question
- Bottom floor a/c not working
- Oh-oh... All I want to do is reset it...
- Air handler and condenser operating at different pressure
- problems with Trane two stage 5 ton 4ttr5061
- Compressor Quit Temporarily
- Temp Rises at night?
- HTM SYSTEMS indoor coil
- Question About Furnace Longevity
- A word from the pros, please!
- PTAC Question
- Basic Pressure Comparrison Testing Results
- new guy saying hello,also question
- Old House - Hot in Day - No Temperature Drop at Night
- Inspection Liability
- Would you do this? A heat recovery ventilator question
- Best Placement of HAVC Vents - Ceiling or Floor for North Carolina
- Question regarding air return location
- LG ac
- How many of you agree with this article?
- Comfort star 18000btu split heat pump Controller woes?
- Need input on this "upgrade"
- Need a 12000btu 115v indoor head for mini split
- Circuit Breaker Trip
- Question for the pros
- UV or Ozone
- Cleaning evaporator coil
- cfm vs temp rise
- got a problem
- Trane Error 126?
- copeland XJAL condensing unit
- York AH and HP Schematics
- Old York HVAC - Air Compressor Won't Turn On
- Heat Pump Help
- Carrier damper preferences
- Upsizing returns
- Heat Recovery Unit hooked up with AC
- Carrier MVC MVB difference
- Close rooms to improve air conditioning?
- Adding A/C to air exchange system
- I need a coil recommendation, York CZH and PV9
- help to decide between 2 quotes
- short cycling