New · SCW 175 wood chip boilerHeat with the cheapest wood there is.
No pellets to buy. No logs to load. No ash to scrape. The SCW 175 turns plain wood chips into 175,000 BTU of hot water. It feeds its own fire and moves its own ash.
Now taking orders. Built in Headingley, Manitoba.
Rendering
- 175,000 BTU
- per hour of hot water (51 kW)
- Up to 85%
- design efficiency
- 53 cu ft
- chip bin, filled with the loader bucket
- Headingley, MB
- designed and built in our shop
Same heat. Cheaper wood. Less work.
You pay for the processing.
Pellets are wood that somebody dried, ground and pressed, then bagged and trucked. All of that is in the price.
You pay with your back.
Split it, stack it, load the firebox morning and night, then scrape out the ash.
Wood as it comes off the chipper.
Chips from a tree service, a sawmill or your own bush. Dump them in the top with the loader. The 175 feeds the fire and carries the ash out by itself.
Your job: fill the bin.
Drag to turn it
Chips in. Hot water out.
Feed
Augers meter chips from the bin to the fire. The controls speed the feed up or slow it down to match the heat your building is asking for.
Burn
The chips burn on a moving steel chain grate with air fed under and over the fire, so the fuel burns down completely.
Heat
The hot gases give their heat to the water around the fire. That hot water goes out to your shop, barn or house loop.
Clean up
The grate drops the ash off its end and an auger moves it out to a wheeled steel bin.
Rough chips welcome.
This is an SCW chain grate. Steel links, 2 inches high and 6 inches long, carry the fire forward and drop the ash off the end.
On our big systems it takes wet chips, bark and dirt, and the odd rock rides out with the ash where other grates jam. The 175 is built on the same links.
How the chain grate works →Not a new idea. A new size.
- 25+
- years building chain grate biomass systems
- 200+
- SCW biomass systems running across North America
- 27M
- BTU in our largest system. The 175 uses the same grate links.
A small wood chip boiler for the farm yard.
Farm and repair shops
In-floor heat or unit heaters. Keeps the floor warm with the big door going up and down all day.
Small barns
Calf, hog and poultry barns in the smaller sizes. Steady hot water for floor heat or fan coils.
Small greenhouses
Market garden and hobby greenhouses. Hot water to bench or perimeter pipe.
House plus shop
One boiler in the shop or a lean-to. Insulated underground lines carry hot water to the house.
That is our rule of thumb for a Manitoba winter. The top of the range is for a tight, newer building. A greenhouse or an older, drafty building needs a lot more heat per square foot, so it gets far less area from the same boiler. Send us your building and we'll work it out before you order.
A good fit if
- You have a loader or skid steer to dump chips in the top.
- You can get wood chips close to home.
- You heat with hot water now, or you're pouring a floor and can put pipe in it.
- You have room indoors with a 9 foot ceiling.
Not the right boiler if
- You have no way to load chips with a bucket.
- It has to sit outside. The 175 is an indoor unit.
- You need more than 175,000 BTU. Our larger biomass boilers start at 500,000.
One look tells you.
Green: running.Nothing to do. A four-foot light bar on the corner shows through a window or an open door, so you can check it without walking in.
Amber: needs you soon.Most likely chips. Finish what you're doing, then bring a bucket.
Red: stopped.Check the touchscreen, or call us and we'll look at it with you.
Fits under a 9 foot ceiling.
SCW 175 specifications
| Heat output | 175,000 BTU/h (51 kW) |
|---|---|
| Efficiency | Up to 85% (design value) |
| Heat delivered as | Hot water |
| Fuel | Wood chips |
| Grate | SCW chain grate, standard links |
| Feed | Automatic auger feed |
| Ash removal | Automatic auger |
| Chip bin | 1.5 m³ (53 cu ft), top fill |
| Length × width | 4,450 × 1,595 mm (14 ft 7 in × 5 ft 3 in) |
|---|---|
| Height | 2,450 mm at the roof (8 ft 0 in) 2,703 mm at the backboard (8 ft 10 in) |
| Fill height | 2,100 mm (6 ft 11 in) |
| Power supply | 240 V single-phase |
| Controls | PLC, 10 in touchscreen, SCW LED status light |
| Cabinet | 16 gauge steel on a steel skid, powder coated |
| Built in | Headingley, Manitoba |
Images are renderings. Specifications are design values and may change. Product notes
Built on what already works.
- The chain grate linksThe same links we put in systems up to 27 million BTU.
- Auger feed and ash augerHow every SCW system moves fuel in and ash out.
- The controlsWe write the program ourselves and can look at a boiler remotely with the owner.
- Made hereDesigned and built in our Headingley shop, not imported.
Closed up. Locked up.
Order yours.
A deposit holds your build spot. You deal with the people who design and build it, from the first call to the day it fires.
Ask about ordering- Sized before you orderSend us your building first. If the 175 is too small, we'll say so.
- Fired before it shipsYour unit is test-fired in our shop. Come and watch it run.
- A direct lineThe people who wrote the control program answer the phone.
Straight answers.
Something else? Call us at (204) 694-2398. You'll talk to someone who builds these.
How often do I fill it?
The bin holds 53 cubic feet. On chips at 25% moisture, a full bin works out to about 18 to 22 hours with the boiler running flat out. That figure is calculated, not yet measured. A boiler rarely runs flat out all day, so plan on about one fill a day in the coldest weather and less often the rest of the winter.
Will it heat my shop?
That depends on the building's size, insulation and doors. Send us the size and what you burn now. We'll tell you straight if the 175 fits or if you need the next size up.
What does it cost?
We don't post prices. Call or send the form and you'll get a number from the people who build it.
When can I get one?
We are taking orders now. A deposit holds your build spot, and delivery is 1 to 3 months after that. The deposit amount and your delivery date come with your quote.
Who installs it?
A local contractor: your own plumber and electrician. We send the install drawings and stay on the phone with them through hook-up and start-up.
What power does it need?
240 volt single-phase. The breaker size comes with your quote.
What chimney does it need?
An insulated chimney, out through the roof or the wall. The size and height are on the install drawing we send with your quote.
Is it an outdoor wood boiler?
No. The 175 is an indoor unit. It goes in a boiler room or lean-to that you supply, with a door big enough for the loader to reach the bin.
Where do I get chips?
Tree services and sawmills are the usual sources. Tell us where you are and we'll talk through fuel before you buy.
Are there grants?
Programs change by province and state, and most need approval before you order. Ask before you buy.
What is the warranty?
One year on the parts SCW makes.
What if something goes wrong?
We stock parts in Headingley and send our own people out. The ones who wrote the control program answer the phone.
Will it heat my building?
Tell us the size of the building and what you heat with now. We'll call you back and tell you if the SCW 175 fits.
(204) 694-2398Road 63 North, Headingley, Manitoba
- 25+ years building chain grate systems
- 200+ SCW biomass systems running
- Your details go to our Headingley office and nowhere else