- pressure guages on gas lines at furnaces
- Gray Sch40 piping
- Return Air
- Where to post this?
- May PVC vent route downwards?
- Direct vent flue location
- Help
- Funny Noises
- gravity furnace vent thingy
- Age of Nordyne split system heat pump
- Testing AC Systems
- Condensing furnace - intake vent
- Exposed baseboard copper
- Radiant floor heating - guess?
- Return air vs. dryer vent
- copper section betweem black iron
- Kitchen Range Hood Safety
- Heat Pump or Electric Heat??
- Is it dangerous?
- "Return air"
- uh oh
- Date of Manufacture, Burnham Boiler
- Handy Page for Deciphering Furnace Ages
- Inspection of vents in attic
- Commercial Ductwork
- Length of PVC vent connector
- Age
- Oil fired boiler in garage
- Flex pipe for furnace exhaust pipe?
- Oil Fired Boiler and Gas Water Heater Venting in Same Flue
- HVAC systems during construct
- Unusual Direct Venting Configuration for Crawlspace Furnace
- SJC Corp Furnace Age?
- Combustion Air?
- Direct Vent clearance to bathroom exhaust duct hood
- thermostat question
- Age of through-wall Emerson AC?
- Air condensate drain lines
- Nothing like a nice warm bath
- Furnace exhaust fan
- CSST on finished garage wall?
- Trane XR90 missing vent??
- Furnace age
- Blue residue on gas shut off valve
- AC Condensate Line
- Help writing up a chimney
- What Does This Switch Do?
- Condo venting??
- Missing gas flue from the furnace
- Main Gas pipe to Water heater
- Termination of heating unit
- Gas furnace flue tied in to chimney
- Heat pump freezes up
- Furnace in the bedroom.
- venting and Return air distance from each other
- Heat pump for split system
- PVC pipe on gas regulator?
- Condensate line design
- Furnace test in hot weather
- Thermo-ply Requirement
- Odd furnace vent
- Goodman A/C Fused
- Radiant snowmelt controls
- Bathroom venting
- WHOOPPS
- Boiler venting through sidewall
- Icy A/C line
- Water Heater Pulling Double Duty
- Window clearance natural draft WH vent
- Help to determine the year it was manufactured a National Comfort furnace?
- Plumbing, Cables, Line Set Routed Through Duct
- How ancient is my A/C?
- HVAC ducting question
- A/C Duct Output Temp vs. CFM Air Flow
- What type of AC system?
- Max Amp rating on outside AC
- circuit board wired outside air handler
- Extra AC return vent
- My first sediment trap
- CO detected at supply registers
- Old Carrier Heat Pump Age
- Mold in A/C plenum-Mold assesment or replace?
- Crystal formation in combustion chamber
- Added Load
- This this A/C correct
- Can I get a name for this part(s)?
- A/C compressor sucking discharge air back into coils
- New Cat IV Burning Smell
- AC quits working while I'm inspecting
- Can You use a smaller coil to a bigger condenser
- Trane Air Handler CFM Needed
- Flue Venting clearance
- Any issue with 45 elbow down on Cat IV vent termination
- Furnace exhaust flue clearance
- Age of AC
- Miss match compessor & coil
- Secondary condensate in attic
- Dirty Condensation
- Control
- Negative slope - furnace flue
- Vent issues for high efficiency furnace
- Deteriorated flue pipe!
- Duct work need it explained
- PEX Hot Water Line Temperature Rating
- Return air from the outside
- Auxiliary Drain Pan Switch Testing
- Gas shut off valve
- Legal W/H Duct
- PVC fire rating
- mold growth on air supply register
- Condenser amperage draw
- HVAC suspended from rafters. What is the correct method?
- Low limit on Thermostat
- Anyone recognize this particular equipment
- Return Air
- HVAC Filter location
- Can anyone I.D. this
- New one for me
- York/Unitary condenser age
- Direct/indirect venting question
- Corroded Galvanized Duct & Associated Fluid
- Excessive condensation from A/C set too low
- Furnace in bedroom closet
- Ok or or not
- Help with rotting flue pipe
- Furnace installed in Attic
- Air handler tonnage
- Exterior Disconnects for Heat Pumps at Ground Level
- Corrugated Stainless Steel Tubing Issue
- Goodman condenser overcurrent protection
- Armstrong furnace
- Old Style Expansion Tank
- OLD JANITROL FURNACE VENT PIPE
- Power Vent utilizing "B" Vent
- B-Vent Installed Horizontally Outside House
- Fuel oil odor still in Cellar
- Water Heater Vent
- 95% furnace condensation question
- OLD STYLE COMMON HVAC UNIT SERVICING SEVERAL TOWNHOUSES
- Can you tell me what this is?
- Your Opinion on Boiler Callback
- New efficiency requirements?
- gas pipe through heat duct
- Wood stove - Minimum heating standards
- aux pan for attic condensate pump
- Furnace Capacity
- Venting Question
- heated garage
- Age of Brock furnace
- Electric furnace
- In floor heating
- Boiler TPR Valve
- Running A/C in cold weather
- Boiler/Water Heater
- Flexible insulated ducting info.
- A/C Condensate Drain Line Insulation
- Moisture Stains around heating vent
- Whole house ventilation system
- AC condenser on other side of gate from disconnect switch. See photo
- Wood Burning Furnace
- swamp cooler installed in garage venting to kitchen
- Seems a window type unit would have been a lot less expensive
- Need data on a Bryant 230-4wg boiler
- Exhaust from high efficiency furnace
- HVAC ducts in garage
- Ice on Chimney
- Downward flue pipe
- Furnace Installation
- Heat Pump Identification
- Disputing "Service Disconnect" with General contractor
- Makeup Air In Energy Star Home
- conditioning only parts of a home
- A/C Unit size
- Boilers
- Code for vent pipe slope
- HVAC ducting on the Ground in a sub area
- Need help identifying brand and age of condenserunit please.
- Cat IV Wall termination
- Need help on Lennox condenser size
- Pressure Cooker
- Furnace Pulling Return Air from Attic
- Mold in Duct System
- B-Vent Is Exhausting Bathroom Vent Fans
- high humidity horse barn
- Payne Age
- Is Entran 3 (heatway) bad?
- Vent clearances from window
- Age of Climate Master Geothermal
- Heil furnace question
- What is this on top of the furnace?
- What is this duct mounted gizmo?
- Lennox AC age?
- Foam application on ductwork?
- 3 minute delay for condenser to respond
- asbestos on vent pipes
- Strange furnace filter
- Clearance for fresh air intake from AC condensor
- Seller says inspector not ethical
- Carrier Heat Pump Decoding
- Gas vent clearance from evaporating cooler.
- What has happen to common sense?
- Is this furnace exhaust vent pipe acceptable?
- No access to evaporator/air handler
- Air exchanger no condensation
- Wall mounted Heat pump on furnace ?
- Relator Problems
- What are the 2 PVC pipes?
- Restricted Air Return?
- Return Air requirements
- " . . . exhausted directly to the outdoors?'
- Gas line connection for furnance
- Clearance to compressor
- Take a guess at what this is
- Should all heat pumps have a thermostat that is manually selectable to EMT coil heat?
- Combustion Fan With Standing Pilot?
- Boiler Circulation Pump
- Whirlpool Heat Pump Date Code Help
- Brain overloaded
- I want to give a special "Thank You" to...
- Mold on furnace plenum register
- Steel Structural tube going through supply plenum
- Bark Mulch & Termites.
- Space-Pak date of manufacturer
- Disconnect for electric central heat unit
- Coleman Forced Air Furnace Age
- Return vent above wood stove
- "Chrysler" Gas Furnace
- Unusual heating set up
- FURNACE IN BASEMENT BEDROOM CLOSET
- furnace vent connection
- Furnace age
- Drip leg required?
- Just a tip!
- gas furnace in floor directly in front of bedroom door
- Gas Line in Contact with Furnace Flue
- Return vent for HVAC above non vented fireplace
- Painted Air handler coils
- Furnace B-vent thru bedroom closet
- How to deterine the proer size of return grill?
- Can a HVAC inspection report be written by a secretary (unlicensed)?
- FAU in mobile home
- Inadequate Duct Size
- Furnace Vent Flue Too Long?
- Condensate trap.
- Primary Drain Line
- Is this a proer p-trap for a HVAC condesation line. I see it a lot.
- A/C air handler condesate pump
- Run Gas Heater w/110+ outside temp?
- Furnace Flue Identification
- Help with Identifying this unit???