- rusty secondary pan (9 replies)
- Furnace and Water Heater Venting (2 replies)
- duct board; combustible material? (7 replies)
- Condensate drain line/Furnace Vent (1 replies)
- Open Air Plenum (2 replies)
- Gizmo (13 replies)
- Return air directly beside furnace combustion chamber (4 replies)
- CO or Cold Air Return? (0 replies)
- Clearance requirements (0 replies)
- Air handler emergency overflow (7 replies)
- Teledyne Laars Combo Water Heater/Boiler Information (0 replies)
- Geo-Thermal Heating and Cooling (1 replies)
- AquaTherm Furnace (13 replies)
- Two stage furnace (1 replies)
- draft barrier (9 replies)
- Return air vent (1 replies)
- Here's another one... (4 replies)
- What's this wire for? (3 replies)
- Water heater venting (3 replies)
- basement floor drain for propane leaks? (2 replies)
- Help with Boiler age (6 replies)
- condensate drains through bsmt floor (5 replies)
- Venting to patio (3 replies)
- Overhead oil delivery line. (2 replies)
- Improper sidewall vent (4 replies)
- Cracked Refractory Tile (1 replies)
- A/C install (0 replies)
- Help to identify (4 replies)
- A/C compressor breaker/fuse (9 replies)
- Why is this wrong? (2 replies)
- Boiler turns on and off often??? What will cause this? (17 replies)
- Condensate drain lines connected together? (5 replies)
- New one...what is this ? (5 replies)
- Furnace in the kitchen (2 replies)
- Combustion air intake location (4 replies)
- Can boiler pipes get hot enough to cause a fire if touching? (7 replies)
- More white powder in the gas vent (4 replies)
- 3 Ton A/C in 2,000 Sq. Ft. House (50 replies)
- Any thoughts on this (6 replies)
- Cellular core abs (0 replies)
- Furnace Closet (1 replies)
- how hot is too hot (6 replies)
- Furnace vent initial rise (8 replies)
- new member (5 replies)
- Radiant heat installation (10 replies)
- Hot water line to humidifier (6 replies)
- Scorch at oil furnace (24 replies)
- Air condition line (8 replies)
- WATER HEATER AND BOILER VENT PIPES (3 replies)
- Proper material for furnace exhaust venting (2 replies)
- termination cap for an electric clothes dryer on a flat roof (4 replies)
- Back drafting (3 replies)
- New A/C Compressor w/Old Air Handler (19 replies)
- Old gas floor furnace (4 replies)
- Coleman Manufacture Date? (3 replies)
- 1938 Boiler Pic (1 replies)
- Flash freeze "A" coil (6 replies)
- Furnace not level (6 replies)
- Condensate and A/C drain to the exterior (25 replies)
- Age of Amana Condensing unit (3 replies)
- range hood duct insulation (0 replies)
- Grimsby furnace age (1 replies)
- Bad Heat exchanger ? (2 replies)
- Gas burning furnace flue height in nyc (4 replies)
- Combustion Air and M1703.2.1 (9 replies)
- Dryer Vent? (10 replies)
- Here's a good one (2 replies)
- Salt Air and the heat pump (4 replies)
- Permanent filter (4 replies)
- Vent configuration (3 replies)
- Disconnected electronic damper (7 replies)
- Mildew associated with Radiant ceiling heat (8 replies)
- Mystery Black Box (9 replies)
- Sizing heat source for radiant floor heat (8 replies)
- Sizing return air paths (undercut doors, etc.) (0 replies)
- Humidifier ID (0 replies)
- Singer condensing unit (3 replies)
- If you see flame-what could this be? (17 replies)
- Condensate drainage to sump pit (2 replies)
- AHRI Website. (0 replies)
- CSST in return (6 replies)
- quality install (0 replies)
- Fire blocking around boiler vent (11 replies)
- See photo...FLOAT SWTICH QUESTION FOR THE HVAC EXPERTS (18 replies)
- Romex through Furnace cabinet. (6 replies)
- Vent flashing (18 replies)
- Heat pump/gas furnace temperature splits (1 replies)
- Test for 90% furnace (12 replies)
- Air Handler Mounting Requirements (4 replies)
- Air circulation fan (10 replies)
- Venting question (4 replies)
- black iron and galvanized pipes (15 replies)
- OLDER THERMOSTAT AND NEW CONDENSER (5 replies)
- venting (1 replies)
- Register for Makeup and Combustion Air (2 replies)
- Vent stack on boiler (4 replies)
- Furnace / Boiler Shutoff Location (6 replies)
- Return Air (8 replies)
- The Anti-Trap (0 replies)
- Think Outside the Box (1 replies)
- Oil refractory (1 replies)
- Can you find the date of manufacture on an ac unit like a water heater or furnace? (1 replies)
- Thermostat Location (3 replies)
- Gas Fired Residential Furnace Power Cable (14 replies)
- Home-built boiler works well (7 replies)
- thermostat wiring splice (12 replies)
- Return vent locale (11 replies)
- In Floor and Baseboard (17 replies)
- Metal duct near crawl space floor (3 replies)
- Z Flex Improper installation (1 replies)
- Heater in Crawlspace (6 replies)
- Three gas units on one vent? (21 replies)
- Intake & Exhaust question (8 replies)
- What is this? Part of a buried oil tank? (6 replies)
- Clearances (4 replies)
- Two appliances connected into single vent (8 replies)
- Exposed flexible duct passing through floor (SpacePak) (7 replies)
- Testing for CO near the plenum (7 replies)
- A/C EER (17 replies)
- AC unit not tested due to cold weather. (6 replies)
- Water Heater Age (6 replies)
- FURNACE VENT PIPE IN BEDROOM (10 replies)
- HVAC System (18 replies)
- How not to do an air return (1 replies)
- Would a heat pump do this ? Have not seen before (8 replies)
- Propane Systems (3 replies)
- Wood & Oil Furnace in same flue (16 replies)
- What would you call this? (6 replies)
- inspection boilers (0 replies)
- Furnace Ducting Work? (14 replies)
- Exhaust Pipe leak (5 replies)
- CatIV furnace venting near compressor (15 replies)
- Scorching at Miller Furnace Manifold (2 replies)
- Vent pipe material (12 replies)
- SERVICE SWITCH BY GAS JOINT (3 replies)
- It bears repeating... (10 replies)
- Conventional Gas Furnace Question (7 replies)
- gas furnace venting (3 replies)
- Who would actually do this? (9 replies)
- Condensate drain into DWV (3 replies)
- evap core corrosion (4 replies)
- condo heat pump (4 replies)
- condensate drain requirements (2 replies)
- 3-phase for AC compressor (5 replies)
- Yet another return air question (7 replies)
- Tiger Loop Question (4 replies)
- Good intentions but... (8 replies)
- Another return air question (10 replies)
- Heat Pump Inspections (1 replies)
- Programmable thermostats burning out? (63 replies)
- tankless & high% FAH vent placement restrictions (1 replies)
- which vent on top (11 replies)
- size of unit (7 replies)
- new boiler circulator chirps/meows (15 replies)
- Fire blocking around B vent (8 replies)
- Vent too long? (16 replies)
- re; checking the electric furnace on heat pump. (8 replies)
- furnace in attached shop (12 replies)
- Flue pipe exposed in bedroom (9 replies)
- Inspectors responsibility? (45 replies)
- Ice House Heater not firing... (12 replies)
- Silly question about heating (4 replies)
- furnace T (14 replies)
- Getting quotes on HVAC system for my own home (19 replies)
- Commercial Restroom Ventilation Requirements (3 replies)
- 90% Efficiency Furnace (6 replies)
- Copper pipe hangers (6 replies)
- Holes in A/C coil (5 replies)
- Why A/C can't be tested in the winter (17 replies)
- High efficiency furnace (11 replies)
- What is this (16 replies)
- White Powder From Vents Maytag Furnace (41 replies)
- Secondary return grill location in laundry room. (8 replies)
- Client Not Happy (30 replies)
- conjoined furnaces (14 replies)
- Heat loss (4 replies)
- old humidifier? (7 replies)
- Ice termites (5 replies)
- Supply venting into garage (18 replies)
- General rule for sizing gased forced air units (25 replies)
- Maytag Heat Pump Age (2 replies)
- Rust on furnace vent (10 replies)
- frost on suction line (9 replies)
- Combustion Gas Tester False Positives (7 replies)
- Furnance Vent (22 replies)
- Can furnace combustion air be pulled from attic (54 replies)
- Looking for info on condensing furnace. (4 replies)
- Exhuast Gases from Condensate Tube (15 replies)
- A/C waterheater combo (1 replies)
- A/C waterheater combo (1 replies)
- Furnace B Vent Temperature (5 replies)
- Inspecting & Testing an A/C's Performance (0 replies)
- Gas pipe over flue vent - gas pack (4 replies)
- Oil fill clearance requirements (3 replies)
- Condensate line question (19 replies)
- UV Filter Light (22 replies)
- Dryer exhaust eroding masonry wall (4 replies)
- Age for Moncrief (Luxaire) Furnace (7 replies)
- oil to gas steam heat conversion (2 replies)
- Venting (6 replies)
- Clues to finding buried oil tanks. (2 replies)
- Ductless furnace system (1 replies)
- trap primer? (3 replies)
- vent repair? (21 replies)
- flex ducts in concealed space? (4 replies)
- Vent near window (27 replies)
- Would you write this up ? See photo (9 replies)
- Age of Temco wall furnace (1 replies)
- HRV - Failure To Understand The Concept (3 replies)
- Location of A/C Evaporator Coils At Downdraft Furnace (5 replies)
- New Style Furnace Disconnect (4 replies)
- Age of Lennox Heat pumps (1 replies)
- Heat pump return vent (2 replies)
- convector intake blocked (4 replies)
- Supply duct through joist cavity (6 replies)
- CODE FOR OUTLETS NEAR AC UNITS (20 replies)
- Cat 1 Venting (1 replies)
- Burners immediately below A coil? (14 replies)
- gfci outlet on furnace (3 replies)
- Furnace Vent to Window Clearance (32 replies)
- Rust on 1 of 2 exhaust vents (11 replies)
- Chrysler Furnace Age? (5 replies)
- Proximity of exhaust fan to FA register (0 replies)
- Heat pump shutting off (9 replies)
- condensing furnace draft fan (1 replies)
- Do not view while eating or drinking (6 replies)
- Moisture on Windows (10 replies)
- Direct Venting through a chimney wall (4 replies)
- Frosty the Heat Pump (4 replies)
- Electrical running through supply duct (3 replies)
- Garage furnace (4 replies)
- Furnace in garage (10 replies)
- A/C secondary drain line (20 replies)
- furnace venting on ac unit (4 replies)
- 240 Volt Cord Connected Electric Construction Heaters (0 replies)
- Flex vent (3 replies)
- Another pic (0 replies)
- Screen needed (21 replies)
- Drain pipe material (5 replies)
- Condenser unit hold down (2 replies)
- Must have or Nice to have (7 replies)
- HVAC unit controls light fixture (4 replies)
- a little help here please (3 replies)
- Unidentified pipe (3 replies)
- Cracks me up!! (5 replies)
- CSST (5 replies)
- Need to replace Goodman ducts (10 replies)
- Flue Vent Thru Roof (14 replies)
- HAZARD: Improper fan-motor replacement wiring 'methods' (7 replies)
- Unlined Return Duct (32 replies)