How Many Panels Do I Need? Standard, Beach and Freeze Protected Kits
Find your location on the map below. Use the table to approximate the amount of panels you will need for optimal efficiency.
If your panels are more than 25 ft from your water heater(50 ft total run), we recommend adding an extra panel. Extra panels can always be added after your installation is complete.
Number of Gallons in Hot Water Tank
Southern United States- Warmer Climates
Mid United States
Northern United States- Colder Climates
30 gallons
2-3 Panels
4 Panels
4-5 Panels
40 gallons
2-4 Panels
3-5 Panels
5-6 Panels
50 gallons
3-5 Panels
4-6 Panels
6-10 Panels
80 gallons
5-8 Panels
6-10 Panels
8-10 Panels
120 gallons
10 Panels
10 Panels
10 Panels
Read Our Customer Testimonials...
I received my order several days prior to the estimated delivery date. It was very well packaged and I appreciated the plug and play ease with my RV. The first time I used it, I had my RV in the shade but could still charge my batteries with my Zamora solar 140 watt portable unit. I couldn’t be happier with it. Thank you!
Robin M.
The purchasing experience was great we got our solar panels way quicker than expected in perfect condition. Customer service is great
Christian H.
Solar tech delivered the panels ahead of schedule. There was an issue that the panels I ordered initially were sold out, so they found a comparable panel and gave me the same price. Great service
Scott C.
Great service, shipping, delivery on time, great price
Gerhard B.
We have a small 17 foot camper trailer and wanted to be able to camp without plugging in. We are now able to use our water heater, refrigerator, water pump, radio, and cabin lights while the solar panel recharges our battery during the day. The unit is easy to use and seems to be well made.
James L.
I ordered the Zamp Solar "suitcase" by phone. The process was efficient and easy. Tracking updates were provided and the shipment arrived on time and in perfect condition. I would definitely order from Solartech Direct again!
John P.
It shipped as promised. Arrived in perfect condition. All my questions were quickly responded to. Now I just have to get my wife to stop working so much so I can use this boon docking with our Airstream!
Michael K.
I purchased 2 [solar attic fans], just had them installed. Seems to be pretty good so far! I used one for the garage, even though this is classified for the attic and the garage seems to be cooler than with nothing on the roof other than the. Eating hot sun!
Renzo F.
Good kit [13" ELITE SOLAR TUBULAR SKYLIGHT KIT], very bright and has changed the whole character of the living space.
Graham P.
Added to cart!
Cart
NO Sales Tax on Non-WA DeliveriesSpend $x to Qualify for Free ShippingYou Have Achieved Free ShippingFree Shipping For Over $x to
1-877-762-6357 
