Stoves Woodstock Ideal Steel Hybrid 210b
Woodstock Ideal Steel Hybrid 210b
A steel-bodied catalytic hybrid with a 3.2 cu ft firebox, 22-inch log capacity and the widest tested output range of the wood stoves we cover: 10,409 to 55,662 BTU/hr.
Key specs at a glance
Tested heat output
10,409–55,662 BTU/hr EPA
Low to high burn rate, crib wood test
Advertised maximum
55,662 BTU/hr maker
Matches the EPA maximum
Efficiency
76% EPA HHV
Maker: 76% EPA weighted (210b manual); 77% HHV (product page, 210a)
Advertised heating area
Up to 2,200 sq ft
25 BTU/hr of tested output per sq ft at the top figure
Particulate emissions
0.7 g/hr EPA
Limit 2.0 g/hr (crib wood test)
Firebox
3.22 cu ft EPA
Logs: 22 in maximum
Where to buy · Ideal Steel: $3,590 list on the maker's site (checked 2026-10-21). No retailer link yet.
Advertised vs EPA-Tested Output
BTU/hr. The advertised figure is 9,323–43,263 BTU/hr "per EPA cord wood 2020 tests" (product page); 10,409–55,662 BTU/hr (210b manual) sourcechecked 2026-10-21 The EPA range is the tested low and high burn rate from the Ideal Steel Hybrid 210b listing (10,409–55,662 BTU/hr EPAchecked 2026-10-21 ). Why the numbers differ.
Our Read
Woodstock sells the Ideal Steel direct from Vermont at $3,590 list, which is unusual in a dealer-driven market and one reason it comes up so often when people ask for a big cat stove under $4,000.
The current model is the 210b, certified on crib wood at 10,409 to 55,662 BTU/hr, 0.70 g/hr and 76% HHV. The product page still quotes the older 210a cordwood certificate (9,323 to 43,263 BTU/hr, 0.89 g/hr, 77%). Neither number is wrong; they describe two tests with different fuel, and that difference is a good lesson in why one stove can carry two output ranges.
Woodstock rates it for up to 2,200 sq ft, one of the most conservative area claims per BTU among the wood stoves here. The 22-inch log length and front-to-back or side-to-side loading are the practical draws for anyone cutting their own wood.
Bottom line: The big-firebox cat stove to beat on value, with a conservative area rating. Check the manual’s 210b figures, not the product page’s older 210a numbers.
Maker Claims vs the EPA Listing
9,323–43,263 BTU/hr and 0.89 g/hr "per EPA cord wood 2020 tests" Woodstock product page
10,409–55,662 BTU/hr and 0.70 g/hr for the current model 210b, tested on crib wood EPA listing
The product page still lists the earlier 210a cordwood certificate. The 210b manual and the EPA listing agree on the crib wood figures. Same firebox, different test fuel: crib wood is the dimensional lumber test load, cordwood is split logs.
77% HHV on the product page; 82.79% LHV and 76.94% HHV on the 210a spec sheet Model 210a manual, specs
76% HHV in the EPA listing for the 210b EPA listing
Woodstock is one of the few makers that printed both numbers. The six-point gap between LHV and HHV on the same test is typical.
Up to 2,200 sq ft Model 210b manual, specs
55,662 BTU/hr maximum tested output EPA listing
One of the most conservative area ratings here: about 25 BTU/hr of tested output per square foot at the top of the range. Only the Drolet Escape 1500 is more conservative.
EPA Certification Record
| Field | EPA database value |
|---|---|
| Listing | Ideal Steel Hybrid 210b |
| Appliance type | Wood stove, catalytic (the maker calls it a hybrid) |
| Test fuel | Crib Wood |
| Heat output range | 10,409–55,662 BTU/hr |
| Efficiency (HHV) | 76% |
| Particulate emissions | 0.7 g/hr |
| Carbon monoxide | 0.33 g/min |
| Firebox volume | 3.22 cu ft |
| Meets 2020 standard | Yes |
From the EPA Certified Wood Heater Database export, checked 2026-10-21. Efficiency is the weighted average of the test burn rates on the higher heating value basis (HHV vs LHV). See every listing in our EPA database table.
Specifications (Maker Sources)
Heat
- Advertised heat output
- 9,323–43,263 BTU/hr "per EPA cord wood 2020 tests" (product page); 10,409–55,662 BTU/hr (210b manual) Woodstock product pagechecked 2026-10-21
- Heating area
- Up to 2,200 sq ft Model 210b manual, specschecked 2026-10-21
- Efficiency
- 76% EPA weighted (210b manual); 77% HHV (product page, 210a) Model 210b manual, specschecked 2026-10-21
- Burn time
- 10–14 hours Model 210b manual, specschecked 2026-10-21
Fuel & build
- Firebox (maker)
- 3.2 cu ft Model 210b manual, specschecked 2026-10-21
- Log length
- 22 in maximum Model 210b manual, specschecked 2026-10-21
- Flue
- 6 in, top or back Model 210b manual, specschecked 2026-10-21
- Weight
- 620 lb Model 210b manual, specschecked 2026-10-21
Controls, emissions & price
- List price
- $3,590 list Woodstock product pagechecked 2026-10-21
What We Haven't Checked
- Current shipping lead time (the product page gave a November–December 2026 ship window on the day we checked).
- Real-world output in your house, which depends on wood moisture, chimney draft and how you run the stove. Nobody's lab number covers that.
Compare: Princess vs Ideal Steel
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- HearthStone Green Mountain 60
- Pacific Energy Super LE
- Lopi Evergreen NexGen-Hybrid
- Drolet Escape 1500
- US Stove US2000
- Harman P43 Pellet Stove
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- ComfortBilt HP22 Pellet Stove
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Sizing a room? Run the heating and fuel cost calculator, or start with the best wood stoves guide.