Skip to main content

New answers tagged

0 votes

Can you vent a portable AC's exhaust through the chimney?

My 35-yr old home had a gas fireplace that we never used because the house is so well-insulated. So I removed the gas fireplace fixture, capped off the gas line, and put an air-conditioner in the ...
James Joseph's user avatar
1 vote

Time delay or contactor bad?

This is a common problem with relays that causes buzzing or chattering. When the contacts become carboned up or pitted after many cycles the relay begins to chatter and will not hold. If the relay is ...
ArchonOSX's user avatar
  • 20.2k
0 votes

Mounting a window air conditioner on top of a sliding horizontal window

I have a right to left aluminum sliding window and a huge old AC. I use a full sheet of construction foam board ($45 a sheet). I cut the sheet to the overall size of the window and then cut out the ...
Bean's user avatar
  • 1
2 votes

Why is there a channel cut into the bottom of this door? How to seal the gap?

This door looks like it could have been set up for an automatic door bottom which would push down to block the gap. Also, there are other forms of door sweep that could work better than your linked ...
Triplefault's user avatar
  • 8,458
0 votes

During hot, humid weather, should I open or close upstairs windows during the day after running AC all night?

Hot air rises, so you're fighting physics to keep the upstairs air cool. Black-out curtains may help keep sunlight out of the rooms. Insulation under the roof and in the walls can help keep the hot ...
Triplefault's user avatar
  • 8,458
3 votes
Accepted

Is it okay to store window air conditioners near a natural gas tankless combi boiler?

A3 refrigerants like propane are basically dangerous. You should store them in a ventilated area away from source of flame. A2L refrigerants are a theoretical hazard. In test, nobody has ever ...
david's user avatar
  • 244
1 vote

Why is the compressor cooling fan switching off on my my Air Conditioner and overheating the compressor

There is very little chance you can hear the coolant bubbling (in fact, it does bubble all the time when the compressor runs, but it is usually audible in much quieter appliances, e.g. a kitchen ...
fraxinus's user avatar
  • 3,209
3 votes

I have a question about the size of the air filter

They are the same. When changing them, make sure you have the arrow on the filter going in the direction of the air flow
JACK's user avatar
  • 82.7k
0 votes

Is it okay for wall AC unit to use a different model’s grille / rear louver panel

It'll be fine. YMMV on louver direction, though. You may find that it blows in an undesired direction. If you don't think that's a concern, don't worry about it.
Huesmann's user avatar
  • 4,000
1 vote

Suggestions to cool very humid garage

I know you asked about cooling and dehumidifying, but try installing a $200 dehumidifier first and see how it goes. The same heat is perceived differently in high vs. low humidity environments. ...
Cheery's user avatar
  • 7,136
0 votes

Why are portable split air conditioners not common?

Mostly it's because having a proper split AC installed is so cheap that a portable version does not really make sense for most users. Most people who use the portable version don't really have the ...
Cidra's user avatar
  • 1
1 vote

Replacement cord for a window air conditioner, what guage cord should it have if it's a 0651515LY with the numbers 14478 on the plug?

A quick search of that number shows a 14 AWG 5-15 connector with a leakage detector. Assuming that (similar to GFCI, but different) is required either by local code or by the air conditioner ...
manassehkatz-Moving 2 Codidact's user avatar
5 votes
Accepted

What is required to replace a split-AC unit?

How difficult is it to swap out a conventional split system? Well.. after the refrigerant is removed, you'll need to be prepared to cut, bend, and braze copper refrigerant tubing. The connections are ...
Greg Hill's user avatar
  • 31.6k
6 votes

What is required to replace a split-AC unit?

There are pre-pressurized systems that are theoretically homeowner installable. (I'm skeptical.) None are really homeowner removable. The refrigerant must be recaptured and that takes specialized ...
keshlam's user avatar
  • 30.8k
2 votes

What is required to replace a split-AC unit?

Regrettably, installing a mini split air conditioner is not recommended as a do-it-yourself project. The difficulty with is that the system should be completely evacuated before adding refrigerant. (...
DrMoishe Pippik's user avatar
1 vote

Where should I place mini-split heads in a converted building?

9.25m x 6.22m total, bedroom 2m x2.34m in normal units. If want to have cold in bedroom then need at last 3k in each bedroom and 9-12k in living room. And for sure good air vent to force air outside ...
k_z's user avatar
  • 367
2 votes

AC continues to run for several minutes after shutting off

Read the manual! Your question is mainly about cooling. You can set the power-off delay for cooling in your system to 5 seconds. That's very close to what you want! You can set the power-off delay ...
jay613's user avatar
  • 41.7k
1 vote

AC continues to run for several minutes after shutting off

You could just pull the breaker at the unit and it will shut off immediately and then put it back in. However, I would guess there is probably a good reason that it takes a while to shut off. Most ...
Jason DeReese's user avatar
1 vote

What size insulation should I buy for my AC lines?

Insulation that's too small leaves a gap in coverage. Insulation that's too large leaves a gap between it and the pipe that allows air (and therefore energy) to escape. Both result in substantially ...
isherwood's user avatar
  • 142k
0 votes

What size insulation should I buy for my AC lines?

Most important is to keep them apart. They run at different temperatures. The thiner one is the compressor outlet (cold line) going to the heat exchanger in the home. the thicker one is heat exchanger ...
Traveler's user avatar
  • 18k
1 vote

What improvements can I make to help house cool down at night after a hot day?

A whole house fan provides air flow through the house by creating negative pressure (ie sucking) air outside through one room, and drawing it in from others in a way you control by opening doors and ...
jay613's user avatar
  • 41.7k
2 votes

Trane comfort 2 thermostat keeps going blank

It appears your thermostat is a "communicating" type, which means that it uses a two-way digital communication between the thermostat and the air handler. Unfortunately this means 99% of the ...
Greg Hill's user avatar
  • 31.6k
0 votes

Elevating portable air conditioner's condensate drain

Single hose portable AC units have very low efficiency because they suck already cooled air inside the room and vent it outside. I installed this: The transparent pane is insulating plexiglas, into ...
bobflux's user avatar
  • 10.2k
1 vote

Elevating portable air conditioner's condensate drain

I placed my unit in the corner of the room next to a sliding glass door that leads out to our balcony. I then built a wooden stand to elevate it and cut two holes in a board that I cut to fit the ...
Steven's user avatar
  • 11
3 votes

Spending $$$ on energy efficiency heatpump attached to old ductwork? Smart?

Regardless of which contractor that you go with, the first step should be to get a 'Home Energy Audit' that includes a Blower Door / Duct Leakage test. Your 22 SEER level system could have as low as ...
Earl's user avatar
  • 503
7 votes

Spending $$$ on energy efficiency heatpump attached to old ductwork? Smart?

Ignore the ductwork. It does matter, but it will affect costs no matter what system you install. However, as long as the ductwork is inside the house, the cold air is still getting into your house and,...
manassehkatz-Moving 2 Codidact's user avatar
2 votes

Why does power to part of my house go out when the air conditioner isn't running?

Posted by question author: What [the energy company] said when they came out is that everything is getting power properly, but when he pulled the breaker for the AC out it was all melted and bud bars ...

Top 50 recent answers are included