Questions tagged [condensation]

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9
votes
3answers
2k views

Central Air condensate is pumped into a hole in the basement floor?

I’ve tried to do some research on this topic but am a little confused and would like to know if I’ve got a problem here that I need to remedy. I think I want to install a self-draining dehumidifier in ...
7
votes
4answers
19k views

How can I eliminate condensation on my toilet tank?

My toilet is getting a great deal of condensation on the tank and dripping onto the floor. What can be done to address condensation on the exterior of a toilet tank?
7
votes
1answer
2k views

Why is there a 1/2-inch hole drilled in my heater exhaust?

I have a Carrier high efficiency furnace which uses 2-inch PVC pipes to pull in combustion air from outside and exhaust the combustion gasses back outside (through a concentric vent, but that's not ...
6
votes
4answers
783 views

How can window condensation in a leased condo be dried, if I'll be away for 3 weeks, without towels?

I will be leaving my leased condominium in Toronto, Canada for three weeks on 1 Feb. 2019. In cold weather, my window and balcony door sills have pools of water on the floor that sometimes pour into ...
6
votes
3answers
43k views

AC Coolant pipe has condensation and leaks inside wall

I've got an old AC unit (probably 13+ years old) that came with the house that I bought. This summer I noticed some water damage on the drywall in the basement, so I cut the damaged drywall away, and ...
6
votes
2answers
470 views

Pipe Insulation Slit Orientation

I have insulated a 'sweaty' pipe to prevent condensation from forming and dripping on to ceiling tiles (hyperlink provides context). I have been advised that the insulation foam should have the slit ...
6
votes
11answers
113k views

How can I prevent my HVAC condensate drain line from freezing?

Last night, my heat (forced air) suddenly stopped. Today, a plumber figured out that my heater is 90% efficient, produces lots of condensate, and the drain line had frozen. We went outside and saw ...
6
votes
2answers
8k views

Will pipe insulation stop condensation on an HVAC drain line?

ISSUE A sweaty condensation drain line is dripping and causing mold in a ceiling panel: The condensation drain pipe is lengthy and spans two rooms: QUESTION Is insulating the pipe an effective ...
6
votes
1answer
11k views

How can I prevent water from collecting near the blower fan blades of a portable air conditioner?

I have a GE portable Air Conditioner (APH10AA). It's about 10 years old (I guess; we got it used). It works good (blows cold air), but in the last year or two it's regularly been getting water built-...
5
votes
3answers
1k views

How do I prevent condensation on my balcony windows?

On the street, temperatures at night are about -5 °С and about 8 °C during the day. In the apartment it is about 25 °C. So, there is condensation on the windows and I don't want to wipe ...
5
votes
3answers
171 views

Condensation on just 1 duct in unfinished basement

We live in the Northeast (PA) and have a new construction home that we have lived in for a year. The home is small (1300 sq ft, open concept first floor) with an unfinished basement. The ceiling of ...
5
votes
2answers
9k views

What are the brown stains showing through my white paint?

Should we be worried about these? We have some brown spots like these in the top floor, in the wall and some spots in the ceiling. Mostly around the ceiling nails like in the first picture. They are ...
4
votes
3answers
5k views

Corrosion on copper pipes due to insulation (with foam)

My incoming water pipe is copper and it is a brand new installation with no leaks. But due to the hot humid weather (even in the basement) it sweats due to condensation. Should I insulate it? The ...
3
votes
8answers
52k views

Air handler condensation draining problem

For the life of me, I cannot figure this out. My air handler and heat pump were installed in 2006 and work great. For the first summer since I've owned the home, condensation started to not drain ...
3
votes
3answers
2k views

If it is important to humidify the air in winter for one's health, how then do you prevent condensation from forming on the inside of windows?

The optimum zone of the relative humidity of one's home at any given time is between 40% and 60%. This is the range to ensure that the humidity does not damage one's health or one's furnishings, in ...
3
votes
3answers
17k views

Do Silent Condensate Pumps for Air Conditioners exist?

I need to install a Condensate Pump in a new A/C in a bedroom, and there is no choice but to pump the condensate up to a drain on the roof. The A/C technicians have told me about different types of ...
3
votes
1answer
201 views

I think I may have fixed my boiler but how could this have helped?

I am an unbelievably "low confidence" DIYer, having only ever rented properties, which limits the stuff you're supposed to do, for liability reasons. However, we had a boiler issue where it was ...
3
votes
1answer
495 views

Could sound insulation around copper pipes cause condensation?

A leak in the bathroom, above the kitchen, started as a small water stain on the ceiling. I opened the ceiling and determined insulation (2 insulation pieces), that was placed to absorb the sewer pipe,...
3
votes
7answers
20k views

What to do with a cold corner?

I live in an apartment on the 4th floor. My bedroom has the misfortune of being in the very corner of the building - it has two outer walls. On top of that, the corner between these two walls is ...
3
votes
1answer
162 views

How can I fix a leaky A/C evaporator?

We just moved into our new place. So many new things need to learn. Just like the problematic AC. My apologizes if I do not know the correct terminology for some of the parts. I will try my best ...
3
votes
1answer
2k views

Is some condensation on bathroom walls safe?

I have an exhaust fan in my master bathroom and also a wall heater. I like to run the heater without the fan running during my shower so that the room is nice and warm when towel drying off. I then ...
3
votes
1answer
644 views

Is this an acceptable way to fix garage roof condensation?

I'm in the UK. My garage has a corrugated metal roof with no insulation. In the winter, when it rains the underside of the roof drips. Not massively, but just enough to be annoying. The roof ...
3
votes
1answer
22k views

A/C Air Handler Leaking Water Everywhere

I have a relatively old air handler that has worked fine for many years. Just recently, it started leaking water everywhere, and it seems to be seeping from inside the base of the air handler itself (...
3
votes
1answer
97 views

Can remodeling work around a window cause moisture / condensation problems?

I had flashing repair work done around one of three windows in my bedroom last summer. When it started getting cold, I noticed moisture / condensation on one of my windows. I thought it would go away ...
3
votes
1answer
1k views

How to avoid water build-up in bathroom's passive ventilation shaft?

Our apartment building is 23 years old, and the bathroom has passive ventilation: basically there's a hole in the wall just under the ceiling, where warm moist air slowly escapes. It usually has a ...
3
votes
0answers
331 views

What could cause moisture on my bonus room floor?

Last week during a cold snap with high winds. I discovered moisture along the floor on one side of my bonus room, above the attached garage. Their was enough moisture that the baseboard molding ...
2
votes
3answers
7k views

How to white spray paint bath window for privacy?

What are tips to paint on privacy for bathroom windows? White spray paint sounds easy, but would make it harder to clean the window, would it not? Pros: Privacy with natural light. Window shades ...
2
votes
1answer
249 views

How does the insulation value of multiple layers of insulation compare to a single layer of the same total thickness?

If I insulate a surface with two sheets of rigid foam insulation with thickness x, or with one sheet of otherwise identical rigid foam insulation with thickness 2x, how should I think about the ...
2
votes
2answers
5k views

Could a sweating pipe in the attic drip water onto the ceiling?

I have a sweating pipe in my ceiling from the AC. I have changed the filter and have tried to clean the coils the best I can. The pipes have no insulation around the sweating pipe. Would this cause ...
2
votes
4answers
9k views

Could insulation around copper pipes cause condensation problems?

Should you insulate hot water pipe (copper) located in an attic? I live in Louisiana, where it rarely gets cold. The plumbers insulated the hot water pipe from the tankless water heater. Now ...
2
votes
1answer
8k views

Why does my bathroom exhaust fan drip during the summer?

I've seen a lot of questions (including one on this site) about condensation on bathroom vents. However, they all seem to take place in winter, with consensus being that as the warm air from the ...
2
votes
1answer
6k views

What is causing my front door to sweat?

The front door of my house (which is rarely ever used) sweats so badly during the winter. At first I thought it was just the glass, but after a closer look it appears that the rescued areas are also ...
2
votes
1answer
2k views

Why am I getting condensation on the first floor joists of my new build?

We're building a new house in New Hampshire. We insulated the 1st floor joists with batting last winter so the minimal amount of heat we had in the basement to prevent the foundation from cracking ...
2
votes
1answer
1k views

Should I open my AC register in the basement to help with condensation?

Really hot in NJ this week, excessive heat warnings, and the like. Daytime Temp: 96 degrees Daytime Humidity: 55% Feels Like: 105 degrees Nighttime Temp: 79 degrees Nighttime Humidity: 87% ...
2
votes
2answers
3k views

Is this a condensation problem or. A roof leak problem?

Noticed a water spot on my unused bathroom ceiling. Crawled into the attic And found this is right below the sewer vent. In my kitchen there is another similar stain right around another drain pipe ...
2
votes
3answers
8k views

How can I fix a small slightly damp area in my basement wall?

I am in the process of converting a bedroom in our walkout basement, into an office. Back in 1999, the previous owner had finished the basement. The basement foundation walls are hollow cinder block,...
2
votes
3answers
132 views

Why does water accumulate on the hardwood floors in my 1930 home?

My home was build 1930 and nothing has been updated. In my downstairs bedroom under anything that sits on the floor from my bed, night stands, dog crate, and other things the floors will puddle with ...
2
votes
1answer
178 views

How can I deal with a heat pump condenser producing lots of water?

Heat pumps was replaced in 2017. North Florida has had moderately cool weather (50-60 degrees F) recently. I noticed water underneath one of the units. Is the water pooling normal? If yes, why? If ...
2
votes
2answers
1k views

Emerson Liebert Air Conditioner Fan Runs Abnormal

We have 2 Emerson Liebert air conditioners inside a datacenter. Issue is not a home issue but devices are all same and I supposed finding some expert here. Here is the thing: This 2 devices are ...
2
votes
2answers
3k views

How to deal with bedroom condensation/moisture on winter mornings?

In late September when the weather started cooling down here in Surrey BC Canada, we started to see morning condensation on our windows (newly installed last year): My wife and I and our son sleep in ...
2
votes
2answers
693 views

Does the thickness of insulation on the cooling pipe of an air contioner make a difference to preventing mould and condensation

We have an apartment in Port Hedland WA.( Extreme humidity and heat) It's relatively new( 3 years old) but there was mold all over the ceiling and along the walls following the air con pipes to ...
2
votes
3answers
435 views

What pipe is this?

Hello and please bear with me. I'm no expert when it comes to plumbing but I will try to be as detailed as possible. I'm trying to understand what a pipe does in my basement. The pipe seems to be ...
2
votes
2answers
1k views

Will foam tape stop condensation on metal windows?

I am having an issue that water is building up on the inside of my metal window. has anyone tried putting foam tape on inside or outside to stop condensation?
2
votes
3answers
4k views

How to solve new condensation in bathroom exhaust fan ducts?

We live in New Orleans in a two story, 95 year old stucco house. When we renovated 10 years ago, we put over 30 recessed can lights in the upstairs ceiling. Those openings in an older leaky house&...
2
votes
0answers
29 views

Upper Floor Window Condensation Issues - HRV?

We live in a 2 level home with basement in central washington. The winters average 20-36 degrees Fahrenheit with humidity levels of 70-99%. Summers are fairly warm to hot with lower RH. Our issue is ...
2
votes
2answers
259 views

Finishing drywall that abuts against metal frame prone to condensation

I have a interior soffit (that encloses a structural beam running along the exterior of the building) directly above an exterior sliding door. The drywall covering this soffit abuts right up against ...
2
votes
0answers
27 views

Trane HVAC in horizontal position - why does evaporator throw condensation?

I appreciate assistance from anyone who has had or understands the problem. I have a Trane HVAC system in a horizontal "left" flow configuration in the attic. Ambient temperature is about 95 ...
2
votes
0answers
300 views

How can I prevent my condensation tubing from freezing outside?

I apologize if I missed the answer for this. My plastic condensation drain tube froze outside and the water in my condesation pump could not drain correctly. I hardly touched the tube and it snapped ...
1
vote
2answers
134 views

I have an indoor swimming pool - can I have a large mirror, or will it be steamed all the time?

I have a dehumidifier in my indoor swimming pool room, I would like a large dance mirror on the wall - would it be constantly covered in condensation. My room humidity is controlled to 50%. Just don’...
1
vote
3answers
112 views

What could be the sources of humidity that build up in a house in an arid environment? Outside RH: 10%; Inside RH: 40% +

We open our window at night at the temps get down to 70F @20% RH. The temp in the house drops to 75F and the RH is 33%. We close our windows when we go to work. When mid day comes, outside, the ...