- New construction - is it worth the upgrade to 2-stage 16 SEER?
- High wind blows out pilot light
- Dual Fuel System - How can I geet smart on when to kick to gas v the heat pump
- Found a Buderus Boiler and Tank, Will it work in my home?
- Honeywell EIM safe in vented crawlspace?
- Honeywell Vision Pro Th8000 Series Issues
- Help me!
- Singer Oil Furnace Filter
- TXV recommendation
- gas furnace
- Cold Weather Furnace Problem
- I have an Trane XL15i Heat Pump
- day & night model 80ua...antique!
- Emerson/White Rodgers 1F98EZ-1441
- High Efficiency Furnace Installation
- OVERSIZE UNIT
- Cold air return capacity
- Cape cod hvac issues
- HRV recommended?
- Rheem High Efficiency Furnace Question - part 2
- looking to buy a new furnace
- Trouble with trane xv95 and ac XR 15
- Heat Pump Compressor
- Trane Trouble
- What is the age of my Heil unit?
- Is my t-stat set/installed right?
- Did I electrocute my thermostat?
- Thermostat Wiring Question
- low temp at fan temp swich on coleman
- Replace lineset?
- Advice needed, Keeprite vs Goodman furnace
- Load Calculation - Heat pump cooling or heating more important?
- High pressure lockout
- The Good Bad and Down Right Ugly
- York Affinity (YZB) HeatPump defrost control
- Is this short cycle a problem?
- Carrier furnace, no fan on heat setting only
- Honeywell 8000 vs Rheem 500 series Thermostats
- Have my Type 1, can't service heat pumps?
- Freewatt + Servel A/C
- How is blower accessed for cleaning?
- Shutting down system on high condensate level
- Limiting current load - Strips or Compressor
- Accuclean Question
- CaRRIER 2-Stage Furnace Problem
- Burnham Steam Boiler shuts off before reaching thermostat temperature
- Central Air
- Humidifier Yes or No?
- Very Heavy House Dust
- RH in washington dc
- lifebreath 155 max operation???????
- Honeywell TH5220D Settings
- Thermostat to use Bryant's "fan on plus" feature
- my house smells like exhaust
- how to CAlculate split AC and precision AC electrical power consumption?
- Residential Home Owner
- Very Dusty House
- Air Filter question
- System Comparisons - What's Best?
- Lennox ML180UH070P36A
- Sequence of Start-up for a direct-spark gas furnace
- Cal. heat pump
- Aprilaire media cleaner/media question
- Maintence recordings
- Question about XL20i + TAM7 + XL950
- Evcon Electric Furnace Blower Issues
- Hydronic coil cools off with fan ON
- Water Furnace Compressor problem
- Rheem 412 thermostat factory defect?
- lennox lzp-2 problems
- Is a Damper ok on a unit that does not have a relief?
- Ice build up
- Can a Six Inch Concentric Vent Be Used For Two Appliances?
- Is there any standard for how hot the outside of a B-vent should get?
- G26 lennox pulse gas furnace intake pipe
- What Size A/C Disconnect?
- humidifiers
- Question about two stage tstat and furnace
- Cracked Heat Exchanger on Lennox Furnace
- Need help w/ Automatic Fan Switch (I think)
- Problem with my Carrier heating system
- Furnace blowing cold air???
- window AC in-rush current
- Two furnaces - a few humidifier questions
- Question regarding the 4" filter with 1" flange
- Hydronic Radiant in Northern Virginia
- Supply Register silencer
- booster/auxilary fans
- SLP98V
- HP Electrical Service Requirement Question
- Basement heat and winter humidity
- proper Lennox furnace?
- Another Rheem Mod Stat thread (update)
- HC-TST412MDMS thermostat
- HSI Question
- Variation in temps from heat registers
- Opinions About This Duct Work - Drawings Attached
- air handler running too frequently
- When Does It Become Overkill?
- Gaffers and Sattler furnace
- What size unit do I need?
- Heat pump needing natural gas backup?
- Larger Zoned Unit vs. Multiple Smaller Units
- Cold air returns for garage HVAC question
- Heat Pump not warming- Thermostat?
- thermostat suggestions
- Installed RTH7500 on Rheem 10 seer unit
- Heating problem
- Just curious
- Daikin Mini-split problem
- Wire Question?
- Installing A/C line sets
- High Psi Switch Nuissance Trip
- Belimo Zoning Components
- Poor air flow from one vent
- About to get estimates
- New Central Air Conditioner
- Infinity with portable generator?
- Dust appearing with new system??
- DOM Timer
- Thermostat won't control humidifier
- Help Interpreting Manual J Calc for Furnace/AC Sizing
- Mini split system - condenser in attic?
- PEX for hydronic heat question
- Leaking Vent Cap/Pipe
- Condensate pump working a lot
- Old rheem RGAA 110 Ec pilot issues.
- Heat Pump- High Pitch Noise in Heat Mode
- White Dust from AC unit
- Heat pump performance
- possible cracked fan blade?
- carrier infinity showing system malfunction
- How Far Above The Coil Does A Humidifier Need To Be?
- What do the pros reccomend for programmable thermostat
- Heat pump issues?
- oil burner intermittent failure to light
- Question about Trane System Configuration
- What Heat Source to get?
- Which system would you recommend?
- Trane XE 800 condensor
- Heating Malfunction - Coleman Electric - Cooling Works
- Please help me choose a Heat Pump
- Lennox Efficiency 21 AC - Complete
- McQuay PTAC units always warm to touch
- Trane Heat Pump Operation and Noise
- Trane UX100C948D - How to Fix Water Leak Behind Vent Blower
- Warranty Question???
- Why does my furnace cycle frequently?
- Hot water coil placement
- Incorrect settings on AHU during setup cause problems with charge?
- Trane XL950 stat
- Paging TeddyBear
- Aprilaire automatic sampling cutoff.
- Why Won't My Remote Sensor Read Correctly?
- Had Ultra Aire 90 installed today, Question
- Demand defrost on Carrier Heat Pumps
- Need help buying a good air conditioner!!!
- New construction heat pump
- 2 STAGE MANUAL CONTROL
- How long is normal defrost?
- New system in old home
- Return Air
- Am Std thermostat problems
- Revisting Static Pressure and calling Carrier experts
- Does it make sense to replace?
- Question on EM heat
- Peerless Boiler Question
- Bypass humidifier
- 4-year old Trane XL16i and 60amp Auxiliary Coils....how hard to change to dual fuel?
- Opinions on Goodman?
- Yet another EM/Aux heat question
- Electric Rates by State
- No Heat - TRANE
- Add on Heatpump hot water heater
- Difficulty in getting info on heat pumps
- Fan Trouble
- New coils? Tax credit hussle?
- Since were talking about duct sizing
- distance between condensers?
- packaged HVAC installed on rooftop
- contactor
- How good is Lennox or Carrier, if you have a good installer?
- Zone problems
- Geothermal Basics
- Question about variable speed air handler
- Infinity HRV - How does the Infinity system control Humidity with an HRV
- How do you tell if gas furnace takes over in Dual Fuel?
- Gas on demand won't start the first try
- Heat Pumps Low Humidiity in Winter
- Carrier 48gs Ignition Problem
- Rheem output temp
- Concentric vents
- Concealed Duct Heat Pump, Zoned Central Air, or Central Air for low-cooling house?
- 1978 Carrier: Help!
- 300 Square Foot Workshop in Minnesota Outbuilding
- Intake for York Affinity 9v
- Zone valve control would not activate bolier
- Help with Carrier Infinity new system
- Cause of refrigerant leak
- Aprilaire 600M New Pipe Noise
- Lennox G61 question
- Mini Split icing up?
- Payne PG8JAA vs. York Latitude TG8S
- TCONT803AS32DA Installer Menu
- Looking for a good contractor in Seattle
- Heil Startup Issues - Flame Blows Itself Out
- Cool air entering room from return
- New Lennox furnace for '12
- Energy audit and new HVAC system
- Retrofit To Add Return System to Entire 2nd Floor?
- Low heat heatpump
- Risks and benefits of multi-speed pump in hydronic system
- Need help understanding fan performance graphs for variable speed mini split
- Unico problem
- Mismatach? Refrigerant line icing
- Mold?
- I had the ritetemp 6036
- how to add gas heat to a heat pump?
- Circulate Fan Mode - Gimmick or Good?
- Gas Heater Venting
- Are whole-home air filtration systems worth it?
- Why IAQ thermostat?
- Does This Make Sense?
- Common Homeowner Tests to Check Systems
- Janitrol 45K BTU Unit Heater: H-Exchanger or Equivalently Dimensioned Replacement Htr
- Another duct question...
- Outside Combustion Air
- Furnace ignites twice almost every cycle?
- rheem rqpm 3 ton Heat Pump odor in air intake
- Extension of: Fully Modulating Furnace, Regular or Communicating thermostat?
- Carrier Infinity Problems
- musty smell from registers
- Adding 3 zones to an existing home
- Pics of my 45 year old oil furnace and duct work.
- Changing Furnace Fan Speeds
- Fan blows but no heat
- Acclimate LP9C Tech's - cycle times
- need help finding ari number
- Problem with a Payne
- Variable speed furnace "Fan On" speed
- Lennox 14ACX-024 vs. XC16-036 and if the Humiditrol is worth it
- what boiler type for radiant heat
- swimming pool as heat source
- Nozzle Spray Pattern Important?
- Most cost effective new oil boiler
- Dehumidify w/ Trane XL20i: which thermostat??
- Lennox furnace
- Thoughts on this second zone setup pls :)
- 90% colemans motor ramping up & down?
- Faulty pressure switch because furnance ungrounded?