Best Of
Re: Prevent mold in mini-split heads
Not the easiest thing to take a picture of but the blower wheel looks like what you would expect for something that sits in pretty much 100% RH most of the time. That is all dust on the surfaces. About 6 years ago the bearing went on the blower and did clean it once when that was replaced.
Not a fan of wallmount design, they really should have put the blower before the coil like most other units out there.
@jpm659er The blower not shutting off is by design. There is no way to measure room temperature otherwise and most people won't spend the extra money for a remote.
This is not really an issue if the unit is sized somewhat correctly and connected to an outdoor unit with good turndown (that is not a multisplit). From the power use on those units, they are cooling pretty much all the time, this means the supply air is bellow 50F all the time.
Kaos
Re: Trying To Estimate Heat Pump kWh Usage
The last time I filled my tank I paid $4.11 per gallon. That equates to $0.35 per kWh, which sounds about what you'd pay in Mass.
Why is my radiator cold? this weeks video
In this weeks video, I discuss many reasons why the steam radiator is cold. Im sure you can add one or two other reasons.
Re: Well pump issues
Has anyone checked the well itself? Over time, it is possible for the well screen to become clogged. This will result in the water level in the well dropping further than it did when it was new, and the pump performance will be affected since it has to lift the water farther. Another possibility is that the overall static ground water level has decreased over the years, with the same result.
Since this is a deep well jet pump, it might be worth looking at the water level in the well with the pump off (the static level) and the water level in the well with the pump on (called the dynamic drawdown). Since you do not see bubbles — and the pump shuts off at 40, though it takes longer than it used to — you are not likely drawing the water down far enough to dewater the well — so that's good. But even so, you may need a pump capable of a greater lift and shutoff pressure.
Re: Trying To Estimate Heat Pump kWh Usage
We're mostly considering the heat pump because she'd like to get AC other than her existing window units.
JustinS
Re: Trying To Estimate Heat Pump kWh Usage
Your math looks right.
This post explains how to do a more detailed modeling:
Re: New tank, single top line, do i need a shutoff?
The tank should sit on a concrete pad , The moisture from the bare ground will rot out the bottom of the tank. Leaves that collect under the tank will do the same. You want to protect the outside from rusting . Rustoleum any scratches that end up in the paint .
Use the bottom tap rather then the top .. Top feed tanks will collect water below the dip tube . The layer between oil and water an algae will grow . The algae feeds off the oil and poops out "Sluge" . The kicker is the algae can't digest the sulfur in the oil and the sludge is a sulfuric acid in base . Probably the reason for the new tank…..The Roth tank has a plastic liner to protect the steel . The Roth will build up sludge too . You have to keep a Roth tank treated to prevent oil flow problems..
Pitch the tank 1/4" down to the valve to drain off any collected water in the tank . Go to HomeDepot and have them cut and thread two sets of 1.25" nipples for the legs with a 1" difference to achieve the 1/4" pitch . And while you are on that isle pick up 4 x1.25" flanges for the legs foot… You say your tank sits 2' lower than the burner ? Now is time to bring up the oil level …
Replace the oil line…. Run a new contained oil line . Copper tubing with a plastic cover. This is a must have for the crawl space oil line run. Trust me on this one , every oil guy here would have stories ..
A fireomatic is required for parts with gaskets like filters, pumps and tiger loops …
As stated above , run the oil line with downward pitch into the house. Any water with the pitch of the tank and the oil line will end up down stream inside the house past the freeze zone ..Inside add the fireomatic valve and service filter ..
New tank new oil…
Hope this helps
Big Ed_4
Re: Chilling me softly with
There is a lot of variety in Utah, we are 40 minutes from mountain lakes and reservoir.
The Little Sahara
desert, salt flats, and the redrock southern Utah. Come and visit sometime.
hot_rod
Re: Chilling me softly with
I used to watch a movie as a kid where they show what I thought was supposed to be an alien facility on Mars.
I found out recently, no, that's not Mars, that's just Utah and that's actually how it looks. Dusty.....dry..
Very different from anything I've ever known which is usually very hot and humid. Our dew points have been 70-80f lately.
ChrisJ
Pump & Dump Water to Air Heat pump Failure
In the late 80's, early 90's I installed 7 WAHP with pump and dump.
Sad to report that the oldest one has failed. It was a 3 ton Command-Aire installed in 1989. So a 35 year run surprised everyone…..including me.
The owner said that the water coil started leaking. The only other failed part was the blower motor, just recently. All of these had the Cupronickel water coils. All also had the desuperheater for DHW heating. And of course good ol' R-22.
Most dumped into a small stream or pond. One dumped into old well.
Out of the 7 there are still 3 running. I credit this longevity to our Sandhills water supply.
Also to the quality of components of the era.
T-stats were such that you could select HP only or HP with aux heaters. Most would heat enough with HP only. I probably oversized most of them because of that fact.
But they were all loud, you knew when they were running.
JUGHNE