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Main product image of 80 Gallon SUN-80 ProMax Residential Electric Direct Solar Booster Water Heater - Tall, Requires Solar Panels (1PH, 4.5kW, 240V)
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80 Gallon SUN-80 ProMax Residential Electric Direct Solar Booster Water Heater - Tall, Requires Solar Panels (1PH, 4.5kW, 240V)

Brand:
AO Smith
SKU:
SUN-80
Rating:
(15)
Q&A:
(6)
80 Gallon SUN-80 ProMax Residential Electric Direct Solar Booster Water Heater - Tall, Requires Solar Panels (1PH, 4.5kW, 240V)
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$1,297.70 each
In Stock
In Stock
Get 12 Thu, Jun 11 - Mon, Jun 15

Lift Gate

This product weighs 203 lbs. and may require the use of a lift gate. If you do require a lift gate at your delivery, you'll have the option to add this FREE of charge when you checkout.
Free Shipping This item ships free
Easy Returns No restocking fee for 90 days

Product Highlights

Product Highlight: Capacity (Gallons)
80 Gallons
Product Highlight: Height (Inches)
63.25" Height
Product Highlight: Diameter (Inches)
24" Diameter
Product Highlight: Warranty
6 Year (Tank, Parts) Warranty
Product Highlight: Fuel Type
Electric, Solar
Product Highlight: Voltage
240v

Description

This unit requires solar water panels and cannot function on the backup heating element alone.

The ProLine® 80-gallon direct solar booster water heaters are designed for installation as a part of a direct (open loop) solar water heating system or for use with external heat exchangers in closed loop systems. The SUN-80 provides storage for the hot water produced by the solar collectors and a supplementary electric heating element that maintains consistent water temperature during periods when solar energy is not available. Count on A. O. Smith for innovative products that provide hot water solutions for residential renewable energy applications. Environmentally-friendly insulation and factory-installed heat trap nipples reduce heat loss for maximum energy savings. This ProLine® water heater is designed with A. O. Smith's superior commercial-grade tank protection. Advanced tank features include stainless steel CoreGard™ anode rod, Blue Diamond® glass lining and DynaClean™ automatic sediment-cleaning system, all designed to help protect the tank from the corrosive effects of water and extend the life of the water heater. This model also includes built-in Dry-Fire protection to protect the heating elements from damage during initial start up. All of these features are accompanied by a 6-year limited tank warranty. A. O. Smith’s ProLine® water heaters are residential products built to commercial-grade standards.


  • 21 gallon per hour recovery at 90° Rise
  • Single 4,500-watt heating element with low-watt density design prolongs element life and maximizes efficiency
  • Open loop or closed loop solar water heater system install options available (solar panels not included)
  • Prewired for surface mount temperature sensor (sensor supplied separately)
  • Patented Blue Diamond® glass tank lining protects against corrosion
  • DynaClean™ automatic cleaning system protects against sediment build-up
  • Stainless steel CoreGard™ anode rod protects against corrosion longer than ordinary anodes
  • Commercial-grade brass drain valve for durable and easy operation
  • CSA Certified and ASME Rated T&P Relief Valve, Factory-Installed
  • 6-year limited tank and parts warranty

Specs

Intended Household:

5+ Person

Application:

Plumbing

Fuel Type:

Electric

Solar

Capacity (Gallons):

80

Voltage:

240v

Phase:

1

Kilowatts (KW):

4.5

Number of Elements:

1

Water Connection:

3/4"

Recovery 90°F Rise:

21 GPH

R-Value:

16

Height (Inches):

63.25"

Diameter (Inches):

24"

Weight (lbs):

204 lbs

Energy Star Rated:

No

ASME:

Yes

Warranty:

6 Year (Tank, Parts)

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Product Reviews

4.13 out of 15 reviews
80% would recommend this product
4.13
out of 15 Reviews
80% would recommend this product
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5 star
60%
4 star
20%
3 star
7%
2 star
0%
1 star
13%
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Customer Images

Most Liked Positive Review

Back in bidness

this is a replacement tank for our 20 yr old one that sprang a leak. since this tank is 4" taller, had to refit the solar collector side and the water service side, so it was more involved than a simple swap. everything hooked up fine, just hope we get another 20 out of it like our old one - it had only a 6 yr warranty too like the new one. Proof in the puddin's my motto.
VS

Most Liked Negative Review

labels backwards

Seems serviceable. It has 4 ports on top, and the hot out and cold in were mislabeled (opposite). My guys piped it as labeled. Family could *NOT* figure out why they had hot water in the tank, but none at the tap. It is due to the dip tube. Once I figured out what had happened, I tried swapping the dip tube (as it is complicated piping for solar hot water, I couldn't just swap the flex lines). The true hot out nipple wouldn't fit in the cold in (due to an oversized sacrificial rod added to the nipple. The dip tube dropped through the port on "hot out" (which we had to make cold). So a panicked tour of 5 hardware stores, and service that goes miles beyond what I had any right to expect from a local supply house, I got a nipple/dip tube combo salvaged from a damaged water heater and got this family hot water. Cost a lot of time (which is money in plumber speak) to fix their factory goof.
Showing 1-10 of 15 reviews

I would not purchase anything from SupplyHouse again.

I purchased this 80 Gallon SUN-80 ProMax Residential Electric Direct Solar Booster Water Heater - Tall (1PH, 4.5kW, 240V) without complete understanding that it is predominantly powered by Solar, not electricity. I called to question if this unit can be powered by electric alone as my client does not have solar panels. The staff didn't know the answer to this basic question. So I decided to return the product to which she told me there is a $385 restocking fee but the website says there is no re-stocking fee within 90 days. I purchased this until not even 2 weeks ago on July 17th. I am just disappointed that the info the staff told me was completely different from the website. Had I knew they don't honor what they say about the restocking fee, I wouldn't have ordered the unit.
Daren
St. Cloud, Fl
2 years ago
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labels backwards

Seems serviceable. It has 4 ports on top, and the hot out and cold in were mislabeled (opposite). My guys piped it as labeled. Family could *NOT* figure out why they had hot water in the tank, but none at the tap. It is due to the dip tube. Once I figured out what had happened, I tried swapping the dip tube (as it is complicated piping for solar hot water, I couldn't just swap the flex lines). The true hot out nipple wouldn't fit in the cold in (due to an oversized sacrificial rod added to the nipple. The dip tube dropped through the port on "hot out" (which we had to make cold). So a panicked tour of 5 hardware stores, and service that goes miles beyond what I had any right to expect from a local supply house, I got a nipple/dip tube combo salvaged from a damaged water heater and got this family hot water. Cost a lot of time (which is money in plumber speak) to fix their factory goof.
Think like Water
Flagstaff, AZ
2 years ago
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Shipment arrived on time and in good condition.

I have not yet installed my water heater, but I'm responding to the request for a review. The sales staff at Supply House was courteous and knowledgeable. The pricing was very competitive. They are a very good company to deal with.
David B
St. Petersburg
2 years ago
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Fast shipping, Just what I needed

Great Price, Fast shipping! Old tank was leaking, great replacement
Angelo
Yonkers, NY
3 years ago
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if needed I would buy again

not too many places still sell this product, my second time purchasing this product from you.
Manny
Attleboro, MA
3 years ago
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Great Company to Work With

We needed a new hot water heater that had a solar component to it. Our plumber had trouble finding one in stock, though one company told him they would ship one to us for an additional $550! I started looking online and supply.com came up. I had a few questions that they answered quickly. We ordered one, and they kept us aprised of the delivery status every step of the way.
Colorado Family
Evergreen, Colorado
3 years ago
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i would buy this product again

It is a fantastic product.
Prabhakar
FL
4 years ago
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I will not purchase form this company again

Purchased a water heater 3/31 didn't arrive until 4/18. Came dented, missing lower thermostat and leaking from the water heater anode. Horrible experience. I run a company and this homeowner was without water for so long. way too many issu
Brittney Manager
Seattle, WA
4 years ago
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Does it's job so far

I used the bottom sensor plug hole and added an additional element that is tied directly to 8 solar panels. So far so good.
JB
Az
5 years ago
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i would buy this product again

it is solar heater with electric and is very good
pakar
winter haven fl
6 years ago
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Product Q&A

6 Questions
6 Questions
ASK A QUESTION

Q: What is the NPT diameter of the Coregard Anode Rod -? What is the length of the rod?

Asked by Mark 3 years ago

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* Required Field
Verified Author and ReplyVerified Reply- SupplyHouse Staff

Hi Mark. The primary anode for this unit is 1.05" in diameter and 28.5" long.

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Q: The loop connections on the top are 1 inch FIP and the hot/cold water connections are 3/4". Is that right?

Asked by hr 9 years ago

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Verified Author and ReplyVerified Reply- Supplyhouse Staff

Yes, the top connections are 1" and the hot and cold water connections are 3/4".

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Q: Is the solar tubing heating coil a double wall or single wall pipe?

Asked by Pat 12 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

The SUN-80 actually does not have an internal coil. The SUNX-80 model has a coil, and it is single wall.

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Q: Can I add a second heating element (4500 watt) if necessary?

Asked by Mike 12 years ago

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Verified Author and ReplyVerified Reply- PexSupplyStaff

No, the unit is designed for operation with only 1 heating element.

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Q: Hi there, I need to replace an older indirect 80 gallon tank, but I don't need the heater. Is this tank available without the heater, or do I just not connect it.

Asked by CaBrit 13 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

The SUN-80 is not an indirect unit, and would not be a suitable replacement for an indirect water heater as it has no internal heat exchanger.

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Q: Where is the knob to turn up the hot water???

Asked by FRED 13 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

Please see page 6 of the user guide regarding temperature adjustment. It can be found here on our site : http://s3.pexsupply.com/product_files/SUN-80-User.pdf

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