0794909283502

Englander

Model # 28-3500

Internet # 100185844

Store SKU # 787178

Store SO SKU # 304883

3,000 sq. ft. Wood-Burning Add-On Furnace

$959.00 /each
  • Heats up to 3,000 sq. ft.
  • Thermostat (for blower) included for easy control
  • Large 850 CFM blower aids in whole-house heat circulation

Frequently Bought Together

Product Overview

It's no wonder we call this the work horse of our stove family. The Add-on Furnace can hook into your home's ductwork to supplement your existing heating system, or you can dump the heat directly into a garage, shop or other large area. The large, 850 CFM blower with thermostat pushes hot air through an 8 in. hot air outlet on the top of the stove, and if this hot air is routed into your homes existing ductwork, it can heat up to 3,000 sq. ft. and we were the first to put a viewing glass on the door of our furnace, which means that you can check on your fire from the top of your stairs if it's in a basement, or from across the room if you place it in a large work area. This furnace burns wood, and was talking about big wood: the firebox accepts logs up to 25 in. L, and a huge ash pan below the firebox means that you will have ample room to collect the ash from those big logs.

  • Steel and cast iron construction offers long-lasting durability
  • Less log cutting, accepts logs up to 25 in. L
  • Heats up to 3,000 sq. ft. when fed into your existing ductwork; supplements existing furnace
  • First add-on furnace with a standard viewing glass (9 in. x 9 in.) check on your fire from across the room or the top of your stairs
  • Extra large ash pan for easy ash removal
  • Vented design ensures safe removal of impurities to keep indoor air clean
  • 8 in. hot air outlet routes air through existing ductwork
  • Air wash system ensures cleaner glass

Info & Guides

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Specifications

Dimensions

Assembled Depth (in.) 
33.25 in 
Assembled Height (in.) 
36.125 in 
Assembled Width (in.) 
24.25 in 
Firebox depth (in.) 
25.375 
Firebox height (in.) 
20.5 
Firebox width (in.) 
15.5 
Product Depth (in.) 
33.25 
Product Height (in.) 
36.125 
Product Width (in.) 
24.25 

Details

Area Heated (Sq. Ft.) 
3000 
Assembly Required 
Yes 
Features 
No Additional Features 
Material 
Steel 
Mount type 
Freestanding 
Product Weight (lb.) 
527 lb 
Returnable 
90-Day 
Vented or Vent-Free 
Vented 

Warranty / Certifications

Certifications and Listings 
1-UL Listed 
Manufacturer Warranty 
Limited Warranty: 5-year on firebox, 1-year on electrical components 

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Customer Questions & Answers

43 Questions73 Answers

Customer Questions & Answers

3,000 sq. ft. Wood-Burning Add-On Furnace
3,000 sq. ft. Wood-Burning Add-On Furnace

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5 answers

Does the firebox have grate holes for the ash to fall down to the ash tray or does the ash have to be scooped from the firebox?

This question is from 3,000 sq. ft. Wood-Burning Add-On Furnace
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May 16, 2016
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Answers (5)

Asked by
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Home Improvement Profile: DIYer
May 22, 2016
Answer: 
Yes it has slots between the firebrick on bottom to fall through
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May 17, 2016
Answer: 
Yes, this firebox has grate holes.
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Asked by
Spring Grove, PA
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Home Improvement Profile: DIYer
May 17, 2016
Answer: 
the firebox has slots in-between the firebricks roughly 1 1/2 in x 8in across for the ashes to fall through to the pan below.
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Asked by
Michigan
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Home Improvement Profile: DIYer
May 17, 2016
Answer: 
There are slots all the way across the fire box from side to side. I bought and installed mine in Oct. 2013. Has saved me wood over what my 30+ year old wood add on was using and the 13/14 14/15 winters were the worst we have had and set a lot of coldest day records.
I am burning 90% Seasoned ash and the ashes burn so fine it is almost like flour in the pan.
Al
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Asked by
Western Massachusetts
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Home Improvement Profile: DIYer
May 17, 2016
Answer: 
Yes it does have grate holes for ash to fall down into the ash tray. In fact, the firebox has a floor that has elongated spaces for firebricks that strides the elongated slots, and ash will neatly fall through when using a scraper, when gently drawn back and forth. The floor of the firebox does not have a floor that acts like a grate "shaker", similar to the old pot belly stoves. You have to reach into Read More
Yes it does have grate holes for ash to fall down into the ash tray. In fact, the firebox has a floor that has elongated spaces for firebricks that strides the elongated slots, and ash will neatly fall through when using a scraper, when gently drawn back and forth. The floor of the firebox does not have a floor that acts like a grate "shaker", similar to the old pot belly stoves. You have to reach into the firebox and use a scraper to gently work the ash down through the slots - and that's rather easy to do. The ash pan is slightly smaller than the elongated slotted spaces and some ash will miss the sides of the ash pan and accumulated on the holding floor of the pan itself. But this is not a big deal and that ash can be brought out by using the same scraper. I want to include in my remarks that if your burning wood with nails and similar things, these slots in the firebox floor are big enough to accommodate them falling through along with the ash. I live n Western Massachusetts and we can get some really bitter cold sometimes. This add-on wood burning furnace is amazing. You don't have to keep a blazing fire going all the time, just hot enough to compliment the size of you home and keep the firebox hot. The heat retention is very good and your family will stay warm. We found that balancing our utility heat with the add-on wood burning furnace is great. Although, if your not burning split logs, and just scraps of wood, keeping the fire going can be labor intensive. One last note - if you plan to burn bio-bricks, that ash doesn't fall through the grates very well. That ash is very fluffy and accumulates on the floor of the firebox, and there's a lot of it. Read Less
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4 answers

How long is the max burn time? Will it burn through a night?

This question is from 3,000 sq. ft. Wood-Burning Add-On Furnace
Asked by
Salisbury, MD
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May 22, 2016
What is the max burn time?
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Asked by
Mio MI
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July 6, 2016
Answer: 
depending on the temperature outside we got between 5 to8 hours burn time. Also depends on the type of wood you use.
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Asked by
northern mi
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May 26, 2016
Answer: 
if you use dry seasoned hardwoods and turn it on mediam low I have had it last the night.
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Asked by
Michigan
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Home Improvement Profile: DIYer
May 24, 2016
Answer: 
If you fill the stove with good seasoned wood, close the damper and draft it will burn a good 10/12 hours.
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Asked by
Western Massachusetts
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Home Improvement Profile: DIYer
May 24, 2016
Answer: 
Burn time is all dependent on the fuel source. If you "bank" your fire at night with split logs, you should tailor your "amount" with the desired heat range that your targeting. On the other hand if your heating during the day time and you're going to the longest burn time, again, you'll have to consider your fuel source and how you regulate your built in dampers - bottom door and top slide vent. This Read More
Burn time is all dependent on the fuel source. If you "bank" your fire at night with split logs, you should tailor your "amount" with the desired heat range that your targeting. On the other hand if your heating during the day time and you're going to the longest burn time, again, you'll have to consider your fuel source and how you regulate your built in dampers - bottom door and top slide vent. This process of keeping the firebox going can be labor intensive if you're using scrap wood, pallets and such. This stove will literally EAT fuel if you don't get your air supply right -- too much air through the bottom door will cause over heating and thus eat your fuel supply.... too little with produce smoke and ultimately line your chimney or chimney liner with a thick layer of soot and stuff. For me, this was a labor intensive learning curve on how to maximize the usefulness of my furnace. But, once I got all the bugs worked out and the right fuel source for the moment, this beauty is amazing. I use scrap wood and dried out pallets during the daytime #I'm retired# then bank my firebox at night with seasoned split oak, maple and other logs at night.
I hope this answers some of your questions - but then again, you'll have to experiment with what works best for you... time wise, heat desired - when and how much heat.
Read Less
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4 answers

can i run this stove without the blower if the power goes out......id like to be able to shut the blower off while using is i choose....

This question is from 3,000 sq. ft. Wood-Burning Add-On Furnace
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maine
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November 22, 2015
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Asked by
Michigan
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May 17, 2016
Answer: 
Yes you can. Ours is in a central part of the basement and we very rarely turn the blower on. You will have to wire in a switch for it or be happy plugging it in or unplugging it.
Al
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Asked by
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January 27, 2016
Answer: 
If you install the optional filter box, which I highly recommend to keep dust out of your duct work, you should remove the paper air filter in the event of a power outage.
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Asked by
northern mi
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January 19, 2016
Answer: 
This stove is not made to be used without the blower, however if you lose power the stove is built well enough to with stand the higher tempatures, don't overfill the stove and maintain your clearences with combustable walls
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Asked by
Missouri
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January 2, 2016
Answer: 
With a small fire. Be careful of warping
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4 answers

does this have a thermostat regulated fan? or doue the fan keep blowing after the fire is out?

This question is from 3,000 sq. ft. Wood-Burning Add-On Furnace
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arkansas
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July 3, 2015
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Asked by
New England
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January 15, 2016
Answer: 
Yes it does, but I think the place the T-stat is at from the factory is in the wrong place .It's on the cold air intake. So the cold air from the blower blows on the t-stat and shuts it down to early. I moved mine to the hot air output now its way more efficient ,runs longer on the same fire. I've had this stove for 7 years and its a great stove and will last for a long time. Mine looks and works just Read More
Yes it does, but I think the place the T-stat is at from the factory is in the wrong place .It's on the cold air intake. So the cold air from the blower blows on the t-stat and shuts it down to early. I moved mine to the hot air output now its way more efficient ,runs longer on the same fire. I've had this stove for 7 years and its a great stove and will last for a long time. Mine looks and works just like it did the day I bought it. Pre plan where its going because its a heavy sucker. It took me a while after I got it home to get the help I needed to get it down the basement stairs. GREAT BUY GREAT SUPPORT Read Less
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Asked by
maine
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September 26, 2015
Answer: 
yes has a thermostat, the fan turns on when the air inbetween stove and the cabinet reaches 125 degrees. you can also adjust the thermostat to your own temperature settings if you want to.
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Asked by
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July 15, 2015
Answer: 
thermostat regulate fan
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Asked by
Spring Grove, PA
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July 5, 2015
Answer: 
Yes it has a temperature regulated fan on the back for a specific heat degree. You can change it to what is more suitable for you. It also has a switch for it to blow constantly, if you wanted it to blow in the summer through your vents...
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Customer Reviews

Rated 4.7 out of 5 by 129 reviewers.
Rated 5.0 out of 5.0 by Unbeatable in the price range We recently bought this add on wood furnace. It works so well I could seriously get rid of my gas furnace. Now, they rate is for 3000 square feet. I would not say it would do an average 3000 square foot house. Maybe if your house was built within the last 10 years and is very well insulated. I am heating 1250 square feet upstairs. The furnace is downstairs and ties right into the ducting very easily. It also heats my basement too so I guess its about 2500 square feet overall. The blower pushes air through the ducting upstairs, and the basement is heated by the left over radiant heat. So happy about that, no more freezing basement. This stove weighs a lot because its built strong. We looked at the Hot Blast units from tractor supply. Those are a definite step down from what we have now. Obviously the $3000 units are probably going to be more efficient, but I am very please so far. I foresee 20 years of usage from this, and no doubt I will probably have to replace the blower and some firebrick in that time but that's understandable. March 19, 2016
Rated 5.0 out of 5.0 by I love it !!! 1 shipping on time 2 reasonable price 3 easy to install 3 keep the house warm (my house 3000 sq) 4 easy to pull out the box full of ashes. 5 enjoy watching the fire thru window . 6 i cant wait for next winter. March 19, 2016
Rated 5.0 out of 5.0 by No complaints at all! this is a very good furnace. Simple to operate and heats our 2800 ft house very easily. We've always heated with wood and have some experience in that area. We lived in Maine thru some pretty wicked weather and I wish we had had this furnace there. This is the easiest furnace ( or freestanding stove) to start a fire and keep it burning that we've ever had. It burns well and holds coals about 8 hours. I would recommend this furnace to anyone. The service department at Englander was very helpful when we called for questions January 2, 2016
Rated 5.0 out of 5.0 by great furnace works great built well really heats well blower is very powerful. now have plenty of heat at the back of house ,pleased with noise level of blower quieter than my hot air furnace. fire seems to last well havent been able to run a full load hasnt been cold enough this puts out a ton of heat havent used close to as much wood as normal this time of year only reason i rated quality as good is poor fit of smoke pipe in the back fits loose and had to drill holes to be able to secure pipe with screws used high temp sealant to fill void around pipe November 9, 2015
Rated 5.0 out of 5.0 by Great stove at a great price I've only burned a few fires in the stove, but have no complaints so far. The firebox is big so you can fit a lot of wood in there. The glass door is probably my favorite feature, I like being able to check on the fire without having to open the door. The blower seems to move a lot of air, but I have yet to really test it's ability during really cold times. Mine got a few dents near the top on the side during shipping. This doesn't affect the operation, is only cosmetic, and Home Depot still gave me a discount. October 15, 2015
Rated 5.0 out of 5.0 by You won't be disappointed! I purchased this unit in July to replace an inefficient wood stove. I installed it myself and found it to be pretty straightforward. I ran the duct work to 3 floor registers that I had in place from my previous wood stove. This thing pumps out heat like crazy. starting a fire was a breeze, the blower is noticeable but it's by no means "loud" as some of the other reviews stated. I've noticed very little smoke coming from my chimney which tells me I'm getting a clean burn. My old stove smoked like a freight train. It's a chilly 43 degrees out as I write this and it's in the 80's in my home! almost time to open up a window! If you want lower heating bills, or no heating bills at all, BUY ONE! October 2, 2015
Rated 5.0 out of 5.0 by Furnace I've only had this stove about a month and only temp Down to 30. That being said I have gotten 15 hrs on one big chunk of wood several times with the warmer temp. Seems to heat as hot as you need it to. Think I'll b glad I have it next winter. May 10, 2016
Rated 5.0 out of 5.0 by So far so good I have only been using the wood furnace for a couple weeks so far and we have not gotten to the really cold weather yet but it is lived up to the hype so far. I have been able to get the house up to 75 starting from 60 with no problems. Pretty easy to install even for someone that does not have the most skills like myself. I was able to do the chimney as well as connecting the furnace to the existing ductwork. October 20, 2015
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