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Sunbank 40 Gallon Solar Water Heater – SRCC Certified

by Sunbank
SKU SB-40SWH
Original price $2,914.00 - Original price $2,914.00
Original price
$2,914.00
$2,914.00 - $2,914.00
Current price $2,914.00
Availability:
in stock, ready to be shipped

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For the policy to apply, please send us a screenshot, link, or any other evidence of the product being priced lower than ours before making the purchase.

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Refunds & Returns Policy

At OffGrid Living Solutions, we are proud to have the best refund and return policies in the industry. If you’re not satisfied with your purchase for any reason, you may return it to us within 30 days for a refund.

If you have a problem with our order (there are missing components, damages, or the product is not functioning), please reach out to us as quickly as possible. Some of the problems can be resolved by going through the product manual or the product FAQs.

Refer to our Refunds & Return Policy for more details.

Shipping & Delivery

Order Processing

Once we receive your order, we will send you a confirmation email. Then we will process the order by confirming that the product is in stock and ready for shipment. If any of the items in your order are back-ordered, we will reach to you via email or phone and you may choose to either wait or receive a 100% refund.

Please allow 1-3 days for processing your order.

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We ship to the lower 48 continental United States only at this time.

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Delivery time

Shipping Timeline listed above is an estimate. Please call or message the web chat for precise ETAs.

Sunbank 40 Gallon Solar Water Heater – SRCC Certified

Description

The Sunbank 40 gallon solar water heater is a complete passive solar water heating system that is easy to install, efficient, and affordable. It has many applications, from residential both on and off-grid, to any commercial application that requires hot water. It includes the tank, evacuated tube collectors, and bracket. The SB-40G is SRCC certified which makes it eligible for the federal tax credit as well as local incentives for solar water heaters. It is the only solar water heater of its type that has the SRCC certification.

One important thing that distinguishes the SB-40G from its competitors is the 316L stainless steel tank, which is much more expensive to produce, much more corrosion resistant than 304 stainless steel, and will last much longer. We want the system to last for a long time because we know that the majority of the overall cost of the system is the installation cost. In addition to the stainless steel inner and outer tank, we have a highly corrosion resistant aluminum and stainless steel bracket. The system is heated by 15 evacuated tube, nickel-plated copper heat pipe collectors and can be installed as a pre-heater to your existing system or a stand alone heater with the built in 240V - 2400W heating element and controller accessory. The SB-40G has a standard 10 year warranty on the collectors and 1 year warranty on all other components of the system.

Back leg assembly for flat roof or ground mount sold separately. The best way to order is to send us an email or give us a call, with a short description of your project. We will make sure you're getting all of the parts and pieces that you need. We will also get you a custom shipping quote and can send you an invoice when you're ready.

Features

The System

  • No pumps or moving parts
  • 40 gallon storage capacity
  • SRCC OG-300 certified

The Tank

  • 316L Stainless Steel Argon Arc Welded Tank
  • 55mm High Density Polyurethane Insulation
  • 240V – 2400W backup heating element (UL Listed)

The Collector

  • 92% efficient
  • 15 high strength borosilicate collectors
  • Vacuum tube allows sunlight to enter but no heat to escape
  • SRCC OG-100 certified

Product Specifications

Sunbank 40 Gallon Solar Water Heater – SRCC Certified Product Specifications

SunBank 40G Spec Sheet

Product Manual

Sunbank 40 Gallon Solar Water Heater Product Manual

Product Warranty

SunBank Product Warranty

We want you to enjoy free hot water for a long time and that is why we offer a 10 Year Warranty for manufacturer’s defects on our evacuated tube collectors and a 1 year warranty on all other components of the system.

We understand that going solar is a big investment and we want to work with you to make sure that you are happy with your investment, including a reduced price for replacement components that are out of warranty. Solar water heaters experience incredibly harsh and varying conditions. The combination of extremely hot water, pressure changes, mineral content, and chemicals are things that wreak havoc on a water heater. And these conditions vary in every municipality and well water system across the country. This is why every Sunbank tank comes with a magnesium anode and we recommend that it is checked one year after installation and that future changes are based on how much of the anode remains after one year. For more information about sacrificial anodes read this.

Solar water heaters, with their widely varying temperatures, also experience much more pressure fluctuation than conventional water heaters. Because of this, we recommend that you install an expansion tank when installing your Sunbank. Especially if you also have a check valve or “backflow preventer” installed in your system.

We make the Sunbank out of the best components that we can. That said, nothing lasts forever. We look forward to working with you when your Sunbank is working great. And if it isn’t, we looking forward to working with you to make it better and to help you to continue to harvest that free energy from the sun.

Product FAQs

SunBank Product FAQs

Do I need to keep my conventional water heater?

No! Our system comes with a backup heating element so you can use it as your only water heater. If you do this, you will also need either our WiFi or hard wired controller. However, if you live in a cold climate, want more hot water capacity, or prefer to keep using gas as a backup, then you may want to install the Sunbank as a pre-heater to your conventional water heater.

Can I use this with a tankless or on demand water heater?

Absolutely! That is a very efficient installation scenario because you avoid the standby losses of a conventional tank water heater. Most all modern tankless water heaters accept pre-heated water, or are “solar ready,” but check with the manufacturer before installation so that it doesn’t void your tankless water heater warranty. They can be sensitive systems, and sometimes manufacturers will want to make sure your water is not too hard, also, in order to honor their warranty.
It’s worth mentioning that when comparing a tankless system to a solar water heater, from an economical perspective there is almost no comparison. Tankless water heaters are relatively expensive to install, so while they may cost the same as a solar water heater they still burn gas or consume electricity and are 75% less efficient than a solar water heater.

What if I'm on well water or have hard water?

If you’re on a well, our advise is to install a whole house reverse osmosis filtration system before installing a Sunbank. High mineral content water causes corrosion and will shorten the life of the tank. Installing a filter will help your entire plumbing system last longer.

Can I put in a second, longer magnesium anode?

Yes! If you have high mineral content water, or just want to protect your tank and not change your anode as frequently, this is a good idea. For our newer systems that have the side port on the bottom of the side of the tank (not the middle), you can use a 3/4″ brass coupling installed on the cold side port to install a 42″ rigid anode. For our older models or our newer models, you can install a flexible 42″ anode, also available at most hardware stores.

What if I'm off grid?

Then you’ve found the right system. This system works perfectly as an off grid solar water heater. Our system requires 0 kWh of electricity to function and you can use the system whenever you have hot water. Or, if you want to always have hot water or a place to store your excess electricity production, we have a 120V element option that you can use for that.

What if I use a lot of hot water at night?

That’s fine. The Sunbank solar water heater is installed in such a way that you always have hot water; either as a pre-heater to your existing water heater or as a stand-alone system with a backup electric heating element installed in the Sunbank. And the Sunbank tank is very well insulated. If you use a lot of hot water at night then you will use the heat stored in the Sunbank and then the backup heater will kick in for any hot water consumed in excess of the amount stored.

What happens to the temperature when I take a shower?

The Sunbank typically stays in the 100F-160F temperature range. Your Sunbank may be at 140 degrees when you take a 10 minute shower at 2 gallons per minute. That means you have used 20 gallons of hot water thus introducing 20 gallons of 60 degree ground water into your Sunbank tank. For an 80 gallon tank that means you have used 1/4 of the heat which would drop the temperature of the tank by 20 degrees (140-60 X .25) to 120F. In reality you would be using less than 2 GPM of hot water because you would mix down 140 degree water to 120 so that it doesn’t scald you. You would actually use 15% less hot water or 1.71gpm (140/120 X 2) and therefore be left with 123F in the tank. Any water temperature over ground water temperature means gas or electricity savings. And when your Sunbank is over your backup temperature set point you are not using any fossil fuel to heat that water.
Our customer service agents are ready to support you!

HAVE A QUESTION?

Talk to one of our trusted experts today! Our dedicated customer support team is here to provide any assistance that you have. Feel free to place an order over the phone (415) 481-4075 or send us your inquiry via chat.

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