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28" Hydronic Electric Baseboard Heater (240 Volt - 500 Watts)

Brand:
Qmark
SKU:
HBB504
Rating:
(182)
Q&A:
(41)
28" Hydronic Electric Baseboard Heater (240 Volt - 500 Watts)
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$301.04 each
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In Stock
Get 4 Fri, Jun 12
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Product Highlights

Product Highlight: BTU Output
1706, 1280 Max BTUs
Product Highlight: Voltage
208V, 240v
Product Highlight: Wattage
375, 500 Watts
Product Highlight: Height (Inches)
8.375" Height
Product Highlight: Length (Inches)
28" Length
Product Highlight: Color
Navajo White

Description

A sheathed electric heating element is totally immersed in a heat-transfer liquid and sealed in a heater-length copper tube. The large diameter reservoir maximizes the volume of heat storage fluid to prolong the thermal constant of the entire heater. Gentle heat keeps radiating even after the thermostat turns off because of the hydronic elements retention qualities.

GO-ANYWHERE DESIGN. The entire unit mounts flush to any wall and flat on any floor - wood, carpet or tile. The trim, three-inch thick functional design and low operating temperatures allow carpeting to be installed up to and around the baseboard.

QUALITY INSIDE AND OUT. Heavy-duty welded steel louvered grilles discourage insertion of foreign objects and direct heat outward into the room. Designer-style junction boxes are made of high-strength Lexan+ to resist scratches and wear marks. Built-in cut-off automatically shuts down the heater should any overheating occur.

Specs

Type:

Baseboard Heater

Length (Inches):

28"

Height (Inches):

8.375"

Color:

Navajo White

Model:

Qmark HBB

Voltage:

208V

240v

Wattage:

375

500

BTU Output:

1706

1280

Application:

Electric Heating

Features:

Environmentally Safe Silicon Oil

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Product Reviews

4.76 out of 182 reviews
98% would recommend this product
4.76
out of 182 Reviews
98% would recommend this product
WRITE A REVIEW
5 star
81%
4 star
15%
3 star
3%
2 star
1%
1 star
0%
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Customer Images

Most Liked Positive Review

toasty bathroom

I got it to supplement the heat in a cold Chicago master bathroom. We didn't want a noisy fan or a blower that would make you feel cold coming out of the shower. We got the 46"? one because we had high ceilings and two windows in this bathroom, but putting the thermostat on low or #1 is enough to make the bathoom, an adjacent changing room AND the master bedroom toasty. We probably could have gone with a smaller unit but we love it. We can also lower the nightime setting on the home thermostat and not heat the whole house throughout the night.
VS

Most Liked Negative Review

Good quality but has odor

Installation went pretty well without too much trouble. Build quality is okay, there were some issues internally, some metal had to be bent as they seem to be damaged in shipping as opposed to a manufacturing issue. The only issue that I've noticed is that now two weeks after they've been on, there is still a strong odor of chemicals coming from the units. I'm hoping that after a period of time that burns off, my wife has real issues with these kinds of smells so I would not recommend this for chemically sensitive people. I would have given a five star review if the smell is not so strong.
Showing 1-10 of 182 reviews

Exact replacement for a unit that quit.

I followed directions and discovered after hookjng it into the circuit with two other heaters that the wiring in the heater was not as shown in the diagram. This caused the thermostat to fail. After correcting the wiring and replacing the t-stat all is well.
Overalls517
Michigan
4 months ago
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Yes

Probably 2 more. Works as it should. Easy installation. Slightly shorter than my originals, by about 2 inches. Would like to have some kind of trim extension. Makes alot of heat!
Tak
Ohio
4 months ago
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Yes

Great fast service. Product works exactly as it should, with no issues. I'll be buying 2 more in the future.
Tak
OH
4 months ago
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Excellent Baseboard Heater and superb Service

While getting ready to sell our home discovered one oh our heaters Wes not functioning. Called Supply House - the agent who answered the phone made it easy to outer the unit. Within several minutes I received payment information and shipping data. Delivery made per notification. The baseboard heater wes well packed- double boxed. Only problem there were small black spots on the white top of the unit. Did not have time to exchange any the top cannot be easily seen
Doctor C
Seattle WA
5 months ago
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Supply House Stands Behind Its Products

We have had a brilliant experience with Supply House. Our heater which was damaged in shipping, was replaced in 2 days with a brand new one. We couldn't ask for better service. Thank you.
Kristin
New York
5 months ago
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It works, but....

I bought this to replace an existing hydronic that had gone bad. The first one I received was bent on the end and also had a group of damaged fins. SupplyHouse was extremely quick in replacing the unit at no charge to me. The second unit had one bent fin on each end of the line and some minor scratches in the paint on the front. I've installed it and it is working, just surprised that in a sealed box these things exist - seems like a QC issue at the manufacturer. To reiterate - SupplyHouse was great to deal with. Pics below are from first unit as it was when opened.
Larry
Emmaus, PA
7 months ago
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Good product

I just installed. Works great. Nice even heat.
Dave
Maine
8 months ago
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Great Service team with great products

The original unit came in damaged. With great customer support a new on was on its way the same day. These heaters work so much better than the equivalent length of another brand and the end cap thermostat is so much easier to use
Patrick
Pennsylvania
1 years ago
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Hydronic Baseboard heater

bathroom heater -- installed separate control unit with no issues. Great quality.
Joel C
Easton, PA
1 years ago
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Hydronic baseboard heater

Excellent quality -- installed separate heat control with no issues.
Joel C
Easton, PA
1 years ago
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Product Q&A

41 Questions
41 Questions
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Q: We will be installing wainscoting with new wiring behind it for heaters. How high off the floor is the 1/2" knockout in the back of these units? Cannot find it in specs.

Asked by Jerry 10 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

The knockout on the baseboard heater is 5-1/4" from the base of the unit.

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Q: Can these be used at 7500 feet? Higher altitude?

Asked by e dogg 10 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

The SKU: 2546W would be the best fit with your specifications for high altitude.

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Q: How do I know if I need a single or double pole thermostat?

Asked by Tom 10 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

This can be dependent on the existing wiring that you will be using for your application. More often than not a double pole would work for this baseboard heater.

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Q: I now have regular electric baseboard heat in my home controlled by a wall thermostat, I want to replace them with the hydronic electric baseboard heaters and still be able to have a wall thermostat in each room instead of thermostat on the unit itself. Can this be done and what all do I need to order besides the heaters themselves?

Asked by Nancy 11 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

Page 4 of the installation Manual (attached below) indicates what is recommended when using these units with wall thermostats. http://s3.supplyhouse.com/manuals/1260299463537/20230_PROD_FILE.pdf

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Q: Are these units paintable, and if so, do they require special heat resistant paint? Please advise as I would like to install these in a downstairs family room which has dark wood wainscoting and chair rail, so I'd prefer a dark brown finish to blend in with the decor.

Asked by Gail the Designer 11 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

The painted heater cabinet may be cleaned using a slightly damp cloth. Do not use abrasive cleaners or waxes as these may damage the finish or leave a residue that will discolor. If it becomes necessary to repaint heater, use only a quality enamel paint suitable for metal surfaces following the instructions provided with the paint. DO NOT paint the heating element or safety limit capillary tube. Repaint only the exterior of the cabinet.

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Q: In our master bathroom we have too limited space for a baseboard application. However, there are three doors where the units can be placed above the jamb, with 10' ceilings. Not as efficient as floor level, but still effective?

Asked by Jim 11 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

Please draw your attention to page 2 of the installation manual to see if your application would be acceptable. http://s3.supplyhouse.com/manuals/1260300809952/20242_PROD_FILE.pdf

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Q: I have a well insulated all electric home in Ohio heated ONLY with standard electric baseboard heaters. I removed the baseboard unit in our bedroom hallway because we have large long haired dogs that like to sleep out there at night. By laying against the baseboard heater, there was a danger that their fur might reach in and touch the heating element! Since the QMark Electric Hydronic baseboard heater's element is encased in a chamber of liquid, and since it apparently has a lower operating temperature, would these heaters be safe to use where a long haired pet might sleep against them?

Asked by Sonny 12 years ago

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We've had this product in a bedroom for several years and have been very happy with it. It is indeed sealed and doesn't get hot like others...and does a great job. I can't see how it would be a problem for long-haired animals.

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Q: What thermostat do I order for this model ?

Asked by guido the hobo 12 years ago

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Verified Author and ReplyVerified Reply- Anonymous

Depends on if you want a double or single pole thermostat. The single pole is SKU: HBBT1

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Q: I have 2 electric baseboard heaters(non-hydronic) running through a thermostat and a 220v 20 amp circuit. I was considering replacing this with the 58" and 94" hydronic heaters to provide a more even heat. Will my circuit handle the heaters?

Asked by Ronald 12 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

If you are connecting multiple units to a single branch circuit, determine the total ampere load (see Nameplate), then determine the power supply wire size and the circuit breaker or fuse size required. Please see pg 3 of the Installation instructions for more information: http://s3.supplyhouse.com/manuals/1260301244480/20270_PROD_FILE.pdf

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Q: I have a 780 sq. ft house in central maine. It has great insulation and windows. I want to install backup electric baseboard heating it needs to keep house approx. 65 degrees when 15 degrees outside. What do I need as far as btu s or watts.

Asked by nate 13 years ago

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There is a conversion factor for calculating watts needed for heating square footage of a space. You're going to need at least 2500-3000 watts, if not more for that much space and that much temperature elevation. Installing solar panels might also be necessary to keep your electric bill from skyrocketing. I decided against heating the entire house with these units and went with a mini-split heat pump system which also gave us A/C in the summer, too.

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