Home Improvement Stack Exchange
Home Improvement Stack Exchange

Questions tagged [condensate]

48 questions
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Can I gain AC efficiency by spraying condensate water on the outdoor coils?

Recently, I was working from the basement and I noticed tonnes of condensate water going down the drain, and thought I might re-use it to improve the efficiency of my home AC system. So I put a condensate pump (tank&float combo unit) in the drain…
Billy left SE for Codidact
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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 my basement. My only reason for doing this is…
BooleanCheese
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Should I reroute this drain tube inside my HE gas furnace?

My furnace, a high-efficiency gas model from Rheem, is about 5 years old. I recently had to replace one of the pressure switches and so I was looking around the inside of the furnace. There is a condensate trap which is fed by two tubes, it then…
bitsmack
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What kind of tubing should I use for draining condensate from a furnace / boiler?

"High efficiency" & condensing boilers or furnaces produce an acidic water byproduct called condensate that has to be drained away. My boiler has an outlet fitting for this condensate water but the manual doesn't say what kind of of tubing should be…
StayOnTarget
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Draining into open pipe in basement

When I bought my home, the basement dehumdifier hose was just draining into an open wye off a drain pipe in the floor which also goes up to the kitchen sink drain. Since then, when I had air conditioning installed, the installer also put the drain…
Michael Mior
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furnace condensate - system to collect and then drain periodically

We have a condo in Northern WI that gets used sporadically over the winter, we keep the furnace running at a low temp while we are not there. Last winter the furnace condensate draining into the septic ended up freezing and blocking the pipe where…
Guy Starbuck
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Should condensate pipe go below vent and how?

Need to lay condensate pipe from the boiler room to the waste pipe, on the other side of my flat. Will use condensate pump and use loft as proxy. I want to drill through ceiling from my boiler storage cabinet into the loft, lay the condensate pipe…
JohnyC
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Rust in condensate drip pan

I have a 5 year old high Efficiency Carrier HVAC system. Been having some moisture/condensation issues and was snooping around and noticed quite a bit of buildup of rust in my AC condensate drip pan. I also get a little condensation dripping out of…
Mr. le
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Tankless water heater plumbing: neutralized condensate and pressure relief valve

Hello recently my old 50gal gas water heater developed a crack and started leaking. I replaced it with a tank-less gas heater. Everything is good, I installed the proper intake an exhaust with 3in schedule 40 PVC pipes as recommended, I plumbed…
Alessio Sangalli
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What is this black bug with wings (pictured) coming out of my A/C condensate line floor drain, and how do I get rid of it?

I observed hundreds of this small insect outside and inside my laundry room on the ground level. They appear to be coming from a floor drain in the laundry room (more detail below). I am confused because they do not appear to be drain flies. Here…
zminster
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Can I use the TPRV line as a condensate line for a new heat pump water heater install?

I live in a second floor condo. I want to replace my aging water heater (WH) with a hybrid, but there are some concerns. The current heater is in a closet outside, with door access from the balcony. My current concern is that there's no direct way…
johnofcross
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condensate line

2nd floor condo unit sharing condensate line with 1st floor. 1st floor installed condensate pump now my condensate safety continuously goes off as there is water by the safety. We have had the condensate line cleaned numerous times (within days of…
user162113
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Carrier Model 59MN7A080Vxxx high efficiency gas furnace has internal rust - remove? coat? treat?

Our carrier high efficiency gas furnace was not checked for many years and has internal rust on panels due likely to a clogged drain tube causing condensate to drip inside furnace (see photos). No AC in system, this is heating only. We will figure…
Armand
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How far up a condensate line can sewage backflow go up into an HVAC system?

I have a Rheem 86V in the up flow configuration. I had some sewage backup in my basement and it looks like some of it went up my condensate line into the HVAC because there was no air gap. I noticed a few cupfuls of water on my air filter and at…
MonkeyBonkey
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Heat Pump Condensate Safety Switch Wiring Question

I recently purchased a simple condensate overflow safety switch (Rectorseal 97647) to install in my attic air handler unit. I currently have the switch installed on the red wire, but do notice the whole thermostat shuts off when the safety switch…
James
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