đ What Is a Cast Iron Stove with Back Boiler and Why Does It Matter for Your Business?
A cast iron stove with back boiler combines a high-efficiency solid fuel heater with a built-in water heating system. It heats the room while simultaneously providing hot water for radiators, domestic use, or underfloor heating. For B2B buyers â import managers, brand owners, wholesalers, sourcing agents â this is a versatile product that meets growing demand for energyâindependent, lowâcarbon heating in offâgrid homes, cabins, and renovation projects. At SHIJIAZHUANG TJJ TRADE CO., LTD., we manufacture OEM/ODM cast iron stove with back boiler units with strict quality control, competitive MOQ, and fast delivery leveraging Chinaâs mature supply chain. This page answers your technical, compliance, and procurement questions.
đĽ Industry Pain Points & How TJJ Cast Iron Stoves Solve Them
Pain Points
- Inefficient heating / high fuel costs â traditional stoves waste 30â40% of heat.
- Cold rooms + no hot water â separate systems double installation cost.
- Poor durability â steel stoves warp, rust, crack within 5 years.
- No OEM flexibility â generic designs donât match brand identity or local regulations.
- Long lead times & inconsistent quality from unknown factories.
TJJ Solutions
- Up to 85% thermal efficiency with integrated back boiler â one fire heats both space and water.
- Heavyâduty cast iron construction (class 25 gray iron) â lasts decades, retains heat longer.
- Full OEM/ODM â custom dimensions, finish, door handles, air wash system, including your brand logo.
- ISO 9001 certified factory with 20+ years experience â consistent quality, onâtime delivery.
- MOQ from 50 pcs, lead time 25â45 days depending on customization.
All performance data are based on lab tests; actual results may vary depending on fuel type, installation, and use. Please confirm with your order contract.
âď¸ Technical Specifications â TJJ Cast Iron Stove with Back Boiler (Model TJJâCBâ2026)
Our standard model is designed for both residential and light commercial applications. Below are the core parameters. All OEM modifications (output, dimensions, door style) available on request.
| Parameter | Value |
|---|---|
| Heating Capacity (room) | Up to 150 mÂł (5,300 ftÂł) |
| Back Boiler Output (water) | 12 â 18 kW (41,000 â 61,000 BTU/h) |
| Efficiency | > 82% (EN 13240 tested) |
| Fuel Types | Wood logs, coal, briquettes |
| Material | Cast iron (ASTM A48 Class 25B / EN-GJL-250) |
| Firebox Door | Cast iron with ceramic glass, selfâcleaning air wash |
| Flue Outlet | Top / rear Ă 150 mm (6") |
| Weight | 110 kg (242 lb) approx. |
| Finish | Highâtemperature matt black paint (standard); color customization available |
| Warranty | 5 years on cast iron body, 2 years on glass and firebricks |
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Specifications are indicative. Final dimensions and output can be modified per your requirement. Always refer to the approved sample for mass production.
â Regulatory Compliance & Quality Assurance
For the US market, cast iron stoves with back boilers must comply with EPA Phase II emission standards. Our factory can produce units that are EPAâcertified when tested with the approved fuel and installation. We also support UL 1482 / ULC S627 safety requirements on request. Additionally, our foundry holds ISO 9001:2015 for quality management, and each stove undergoes:
- Hydraulic pressure test of the back boiler (minimum 1.5Ă working pressure).
- Leak test with helium detector before shipping.
- Thermal shock resistance check on cast iron components.
- Full dimensional inspection against approved drawings.
All stoves come with a CE declaration of performance (DOP) or UKCA mark if needed. For US customers, we provide test reports from accredited thirdâparty labs to support your UL/ETL filing. Please note that local installation codes (e.g., NFPA 211) are the responsibility of the installer; we supply the hardware.
đŚ B2B Trade Terms â MOQ, Lead Time, OEM / ODM
50 pcs per order (or 1Ă20Ⲡcontainer ~ 100 pcs for bulk)
25 days (stock parts) â 45 days (full custom design)
Yes â we adapt dimensions, door style, flue position, finish, logo boxing & manual.
Heavyâduty plywood crate with foam cushioning + PE film. Export seaworthy.
FOB Tianjin / Qingdao, CIF main US ports (Seattle, Los Angeles, Houston).
12âmonth warranty against manufacturing defects, free replacement parts, 24/7 technical support.
All terms are negotiable for longâterm contracts. Contact us for a customized quote.
đĄ Where Are Cast Iron Stoves with Back Boilers Used?
Our units are installed in diverse environments across the US, Canada, and Europe. Typical scenarios include:
- Offâgrid cabins & tiny houses â independent heating + hot water without electricity.
- Rural farmhouses â backup heat during power outages; supplement propane/oil systems.
- Workshops & garages â lowâcost heating with waste wood or scrap.
- Renovation of old stone buildings â where radiators cannot be retrofitted easily; back boiler connects to existing water pipes.
- Small commercial spaces â bed & breakfast, lodges, hunting cabins.
The cast iron stove with back boiler is especially popular in states like Maine, Vermont, Montana, and Colorado, where heating oil is expensive and selfâsufficiency is valued.
đŹ What Our Buyers Say â Real Feedback from Importers & Brand Owners
Import Manager, Northwest Stove Supply (USA)
"We sourced a prototype cast iron stove with back boiler from TJJ in 2025. The fit and finish were impressive â no sand holes, tight joints. The back boiler held pressure perfectly. After EPA testing, we placed a 200âunit order. Lead time was 38 days, exactly as promised."
Brand Owner, OffâGrid Living Solutions (Canada)
"I needed a custom design with a side door for a narrow kitchen. TJJâs engineering team modified the CAD within a week. The final product matched my branding perfectly. Their OEM service is truly flexible â and the MOQ of 50 pcs allowed me to test the market without overstock."
Sourcing Agent, EuroHearth (UK)
"Iâve visited the TJJ foundry in Hebei. Their casting lines are modern, and they have a dedicated QC team for each batch. The cast iron stove with back boiler we sell now under our brand has a defect rate below 0.5%. Thatâs rare from any supplier."

Wholesale Director, Hearth & Home Distributors (US)
"We compared quotes from five Chinese factories. TJJ wasnât the cheapest, but their sample quality and communication were superior. We now stock the TJJâCBâ2026 as our main line. Our customers love the heat output and the fact that it can run a 4âradiator system."
CEO, EcoHeat Europe (Netherlands)
"TJJ helped us develop a CEâcertified cast iron stove with back boiler that complies with Ecodesign 2022. Their knowledge of European standards saved us months of R&D. I recommend them to any serious importer."
Testimonials are based on actual feedback from selected clients. Names and roles may be anonymized or used with permission.
đ Our Factory & Foundry â Powering Your Supply Chain
SHIJIAZHUANG TJJ TRADE CO., LTD. operates a foundry with over 20 years of continuous operation, originally among the first casting factories in China. We employ 120+ skilled workers and quality engineers, covering an area of 25,000 m². Our annual capacity for cast iron stove components exceeds 50,000 units. We have exported to the United States, South America, Europe, and Africa, with a strong reputation for reliability.
Author: David Manning â Senior Casting Engineer & International Trade Advisor
With 15 years in the foundry and heating industry, David has overseen the development of cast iron stove lines for OEM clients across the globe. He specializes in bridging Chinese manufacturing efficiency with Western quality standards. His articles appear on industry portals and trade magazines.
đ Ready to Source Your Cast Iron Stove with Back Boiler?
Contact TJJ today for a free consultation, sample request, and OEM quotation. Our team will support you from drawing stage to final delivery.
Tel / WhatsApp: +86-15511680668
Email: sindyhao2014@163.com
Address: Shijiazhuang, Hebei Province, China
Contact Page: www.tjjironcastings.com/contactus.html
* All information on this page is provided for reference. Specifications, certifications, and trade terms are subject to written confirmation in your sales contract.