Technical Discussion: Solar Heating - Solar Thermal

Post your questions and answers on solar water heating and solar air heating systems and components. You may even get a reply from one of our Solar Queens!

topics

Subject Started by Replies

Purging air from closed loop system

This past September, I finally installed a SHW system on my house in Vermont. Two Sun Earth 4X10's w/ 120 gallon Superstore...
William Sullivan 5

Looking for specific install advice regarding SolarSheat 2-pack

I just purchased the twin-pack YSH SolarSheat (1500G+1500GS+install kit) air heater.  The instructions are... unclear, for lack...
Travis M 5

Drainback DX pump sucking air

I installed a DX drainback system with 10-gallon drainback tank.  I filled the small DX tank to within 1/2" of the top...
Sean Sadler 4

Want to heat a pool

Have purchased a 90W panel (18V, 5 A) and a liang D5 pump.   Can just hook them up and let it run as long as the sun i...
Ronald Haley 3

ups backup for solar domesic hot water circulation pump

I have a solar domestic hot water system that works great. One problem, In the event of a power outage my 115 volt gruntfos circ...
Patrick Hermsen 5

Solar water heater efficiency?

Okay, PV panels are really inefficient -- around 15%. With 1 KW of solar energy falling on every square meter of the earth'...
Mike Dodd 4

Hot water heating element

I have a C35 controller switched to diversion. A single 60w solar panel. With a air heating element load. I have an opportunity ...
Max Schulte 4

United Standard SC500 control system

I am looking for Mike McVey, who posted here in 2009, that he had the manuals for a system like mine. I would like to find him a...
Kirk Hoffman 0

Pump and Panel for Solar DHW system

Hello I am in the processing of engineering a DIY solar DHW system as described on the site www.builditsolar.com.  This...
Gregory Lee 6

SHW & Existing Oil-fired Boiler w/storage tank

I'm looking at SHW. I've got an existing 3 year old oil-fired boiler that provides radiant heat and domestic hot water...
Glop P 7

Overheat cutout setting

I have a direct system which works really well, the KITD-80-52.  It also has an electric backup element, which in Southern ...
Graham Molineux 1

Condensation in my Solarsheat 1500G

I'm noticing moisture building up under the glass on my 1500G and it's causing it to fog up in the morning.  Is a...
Frank Eppich 1

backup for SHW during a power outage

I have an evacuated tube system (Seido tubes w/ a Purist pump station).  I would like a system to keep the pump going durin...
Edward McMonagle 1

leak on Db drainback tank act model 15-15xss

I seem to have a leak on the stainless steel nipple wear is screws into the tank when the tank is hot 120+. it dibbles out the s...
Don Eby 2

Grounding and Lightning Protection for thermal HW collectors

Am mounting a pair of collectors on the roof and seek information on grounding the panels. A web search offers some conflicting ...
David Wells 1

Plumbing schematic for interface with existing propane boiler.

I am looking for a plumbing schematic that will interface my existing Trianco Heatmaker HP M2-100 and Amtrol Storage Tank with t...
Charles Campbell 7

Flashing / sealing

I have an AET solar panel to install with a standard mount kit. What is the best way to seal the mounts on my shingle roof to av...
Brian Ramsey 3

Need a SHW Installer advice on current issue with system

So, I have a closed loop system with QTY 2 4x8 collectors going to a 80gallon tank with heat exchanger, currently being pumped u...
Ben Farmer 11

Legionnaires' disease with SHW system

I've set my 80 Gallon Richmond SHW tank's backup element to 115 degrees to save money since my system is usually crank...
Ben Farmer 3

Overheat protection: hot water cylinder / PV

Hi, first time caller I have a neat 400l (~100 gal) HW cylinder. It currently has 2 X 3.6kw 240v AC  elements, top an...
Adam H 3

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