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Actually the vapor moves from higher humidity to lower humidity. In the case of a slab of concrete, in many areas the moisture in the earth under the slab creates a higher humidity area than what you want in your building and so vapor travels from underneath, through the concrete into your...

Try storing a couple bags of cement on a non vapor barrier floor for a couple of years, maybe a metal tool box that has fallen into disuse sitting in a corner somewhere for a few years. over the years I have seen the difference between with and without vapor barrier and it is not just the...

Thanks, that may be the way I go of I can come up with a convenient place for it to be permanently placed somewhere in my garage. The convenience factor is an important part of what I am looking for. In my last garage, that GoJo fixture on the wall was just there to reach for whenever, and...

I left my Go Jo wall mount dispenser behind during last move. Had it for 25 years so Go Jo was what I used. I liked the one handed gob I could get and not have to place greasy hands to hold stuff. I have terrible experience with bottle top dispensers, That Go Jo dispenser gave me a good gob...

Don’t forget a non vapor barrier Floor can wick in tons of moisture. Just warming up the air will not make moisture but warm air will hold more moisture so if there is a supply of water, be it from non vented heater, snow melt, floor wickin, toilets, sinks wet cars etc the air will have more...

The little rolls tell you at the cash register, "Rip Off!!!" Look another dummy.

What Burt said. But also if you get any sweating (condensation) during cooling use the insulating sleeves. Outer covering is a vapor barrier. Will significantly improve cooling performance in the house proper. It takes a lot of energy to condense water. Yours is probably heat only but mention...

If DIY is your only option the Mr Cool will probably do a decent job but there is a really nice heat boost going with the Hyper heat models once it gets sub 30 deg F. Senville hyperheat is their Sena models, hyper might be a trade mark thing, so you have to verify it is hyperheat type unit by...

My minisplit ceiling cassette has some sort of condensate pump but it is out of sight somewhere in the unit. It probably gets dirty just like the standard exterior HVAC ones. But I have not read or heard anything about it. This thread has me thinking “what else do I need to learn to keep these...

"Mints???"

I have installed several single head minisplits, and two of them could have been dual head with single condenser but I was just not ready to think through how they would operate and how well zone control would work so I used two condensers and considered the redundancy and simpler diagnostics to...

I ordered R-5 1.125-in x 4-ft x 22-ft SilveRboard graphite Faced Polystyrene Garage Door Foam Board Insulation from Lowes and my concern over the R5 is gone. The warmth in my garage is wonderful. I had the same question about the windows, and did not want to stop installing so I used a...

Minisplits do accommodate over sizing much better than conventional hvac but work best when sized to the load. The unit can throttle down to 30=40% of its max capacity but on mild days you are going to see a wide temperature swing as the unit sees the point often where it has to shut down the...

I have a 24x36 stick build detached garage air sealed well that a 1500watt heater will hold temps above 55 on cold 25F days. Two heaters will get it to 61 or 62. I suspect it would take 5000 or more to get it to 72F I was using the heaters to help me decide what size mini split to install.

I heat a 24x36 detached garage with 10' ceiling stickbuild with a 1.5K hyperheat minisplit. At 25F it just loafs. Only operating for a few weeks now so the real proof comes as winter progresses and ground cools off and themps drop but I expect the Comfort level is similar to house. At 25F the...

I would pay $40 a pop for any hookup that was as quick as running that qwik-e-vac process, - - if it works. Nowhere does it claim to replace pulling a vacuum on a complete system, or old systems that have been running that would have oil coating the lines with the various gasses trapped in the...

On a fresh install, the only thing being evacuated is the lineset itself and the evaporator which are new and free of compressor oils that could combine with moisture. So the moisture is not bound up as it later becomes in a running system. I have no doubt that there is not technology...

Just a few months ago someone contributed to a minisplit install thread about a product that essentially was a can that will pressurize a hooked up lineset, then purge it somehow. I thought it was an easy to remember name to remember and I started seeing it advertised several places but now...

Weston, another thought you triggered, my shed about 50 feet from house has a ground rod (by code) where as my ac condenser of course does not. Me think we are just rolling the dice knowing the shed is more likely to take its own lightning strike so we put a rod there to protect the content...

westom, this make me think there should be a ground rod at every air conditioner condenser. Connected to the chassis. Also my sewer pump about 10 feet from house should be ground roded.