Best Of
Re: I said "what???"
Hi, Why did they call you? Is that 15 degree delta working for them? 🤔
Yours, Larry
Re: I said "what???"
It is called joist bay heating. Uponor still has a method in their design guide using bare Pex tube in the joist bay. Suspend the tube an inch below the floor.
UltraFin is an aluminum convectors that snaps on Pex tube to increase convection. Either these or the fin tube can work fine
the fin tube is probable even better than these two options for getting the energy from the tube to the joist bay. Generally 140f and higher SWT required
hot_rod
Re: I said "what???"
Everybody has a better idea that they will experiment with. After they figure out that it may not have been such a good idea, they will still defend it as the best thing since sliced bread! Hard to admit you are an idiot when it sort of works. And if you make emough adjustments, you will get close to comfortable regardless of the operating cost.
Re: I said "what???"
I have seen this a few times, and tried it out under my tile bathroom floor once upon a time when I had some element leftover from a job. When I was sending 160* water to it, it actually worked pretty well. With that said, the bare PEX feeding it from the mechanical room across the house did a similar job where it passed through below the master bedroom. It's since been switched over to Joist Trak and 105* SWT, which definitely outperforms the BB theory
GroundUp
Re: I'm getting solar panels. I'll let you know how it goes in this discussion thread.
Welcome to the club.
I have a 42 panel 12kw system with enphase micro's installed end of 2021.
I've slowly moved all my appliances except for the boiler over to electric. Still not a dime spent on electric since the spring of 2022... I did suffer one panel failure and one micro failure that was handled under warranty. Did pay for squirrel 🐿️ defenses. Little buggers.
JakeCK
Re: I'm getting solar panels. I'll let you know how it goes in this discussion thread.
When I installed my first array, I made my house as inefficient as possible!
My power company would only allow you to install an array that provided 70% of your historical power usage. I wanted a bigger one. So I held off on a number of improvements until after the array had been installed.
Re: I'm getting solar panels. I'll let you know how it goes in this discussion thread.
Nope, NJ is more sunny than Michigan. Stop trying to harsh my solar install before it's even installed 😂
I just got the approval from the NJ Solar Incentive program. I think there's still a utility permit required which should come this week, then the contractor applies for the town permit.
I think they submitted the permits about two weeks ago. The whole project should be 8 weeks total, so in maybe a month or so things should be about lined up for the install.
Re: I'm getting solar panels. I'll let you know how it goes in this discussion thread.
I wish mine would get wet occasionally, rain cleans them off and in this 100 degree heat cooling them down would increase production.
hot_rod
Re: I'm getting solar panels. I'll let you know how it goes in this discussion thread.
The ship has probably sailed, single inverter would work for your right neighbor but your install would work much better with micro inverters. Partial shading is the bane of PV arrays.
You can still make the current setup work well if they can get an inverter that has multiple MPPT inputs (ie SMA Sunny Boy Inverter SB6.0 ) and try to break up the arrays so partial shading will only effect some of the strings instead of all of them.
Good for you for taking the plunge. With the power prices I see down there, I'm surprised there isn't more PV, ROI is very quick.
@JUGHNE PV arrays protect the shingles since they shade them and keep UV out. The shingles under the array will last a lot longer. Metal+PV is great but spendy.
Kaos
Re: What's your favorite multi-tool? I mean that folding one you keep with you at all times at work.
Looks like Amazon still sells them. Edit: Oh, it says unavailable.
BTW, Tim: Thanks for the tip on using a Sil-Fos stick to clean out Lochinvar HX firetubes. Works great!
