The Innovative Heating Solutions Group is the umbrella organization that brings together our six trusted brands: Trimline Fires, Holetherm, DHK Products, Home Fire Creations, LEWO, and thermoCet.
The Innovative Heating Solutions Group is a full-service manufacturing specialist in the field of fireplaces and stoves, flue gas exhaust systems, and products for the heating and ventilation industry. We have a strong ability to find solutions, matched by our technical expertise. From concept to product: we have a solution or will develop one. We take the pressure off you by taking charge. This ensures optimal results and a satisfied customer—before, during, and after every project.
Trimline Fires creates designer fireplaces that combine chic design, modern style, and a warm atmosphere with quality, innovation, and sustainability. They’re built to last a lifetime—a sustainable choice for the future. Thanks to advanced technology and a timeless look, Trimline Fires fireplaces fit into virtually any home. For many people, they are the beating heart of their home.
For more than 45 years, Holetherm has been supplying reliable, durable, and safe flue gas exhaust systems to the heating and plumbing industry. The product range consists of flue gas exhaust systems and flue pipes for gas- and wood-burning fireplaces, stoves, and central heating boilers. They comply with the strictest European standards and the ISO 9001:2015 standard.
DHK Products offers an extensive range of fireplace and stove accessories to create a cozy atmosphere and enhance comfort in and around the home. In addition, DHK Products supplies DIY supplies and solutions for professional tradespeople, from installers and contractors to chimney sweeps.
Home Fire Creations designs, manufactures, and installs custom fireplaces for indoor and outdoor use, serving both residential and commercial clients. The brand works with gas, wood, and electric fireplaces and tailors every design entirely to the client’s wishes. Home Fire Creations handles everything in-house, from design to production and installation of fireplaces with flues. This technical expertise and creativity ensure complete control over the process and a result that aligns with the customer’s vision.
Since 1974, thermoCet has been developing and manufacturing wood- and gas-burning fireplaces in its own ISO-certified production and R&D department, with a strong focus on quality, sustainability, and ease of installation and operation. In addition, thermoCet is a manufacturer and supplier of steel OEM and private-label solutions for the fireplace industry, with a focus on robust, angular designs.
Since 1980, LEWO has specialized in stainless steel flue gas exhaust and chimney systems, with a focus on durability, heat resistance, and safety. The brand is a manufacturer and supplier of OEM solutions in steel—specifically stainless steel and galvanized steel—in round and thin-walled profiles ranging from 0.4 mm to 2.0 mm, serving various industries.
Six Dutch forces together
IHS Group combines the strength of six Dutch companies, each with its own expertise and a family-driven foundation of craftsmanship since 1974.
Complete assortment - Everything under 1 roof
Unique combination of flue systems, stoves, fireplaces, accessories and OEM– and Private Label offerand we the complete solution for the (ambient) heating industry.
Focus on quality, innovation and sustainability
In everything we do – from design to delivery and in collaboration with our partners – we realize innovative and future-proof solutions that make a difference.
In-house R&D and Production
With an in-house R&D and production department, we develop innovative products that meet the highest European standards.
International network
We have an international network of renowned partners and stakeholders with which we increase our clout and accelerate innovation.
BUSINESS
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Below you’ll find answers to the questions we’re asked most often—ranging from our product lineup and how to choose the right product to shipping and requesting a purchasing account. If your question isn’t listed here, please feel free to contact us.
The Innovative Heating Solutions Group comprises six Dutch brands: Trimline Fires, Holetherm, DHK Products, Home Fire Creations, thermoCet, and LEWO. Each brand has its own area of expertise, ranging from designer fireplaces and flue systems to accessories and custom fireplace installations.
Holetherm is the brand that has been supplying complete flue gas exhaust systems for gas- and wood-burning fireplaces, stoves, and central heating units for over 45 years. Since 1980, LEWO has been a specialized manufacturer of stainless steel flue gas exhaust and chimney systems, focusing on OEM steel solutions. Both brands are part of the IHS Group and complement each other.
Yes. Since 1974, thermoCet has been developing and manufacturing wood- and gas-burning fireplaces and providing OEM and private-label solutions. Trimline Fires specializes in designer fireplaces, and Home Fire Creations creates custom fireplace installations for both indoor and outdoor use. All three brands are part of the Innovative Heating Solutions Group.
Yes. Professionals can become dealers for the Innovative Heating Solutions Group and purchase products from all six brands through a single purchasing account. You can apply for a purchasing account on the website, after which an account manager will contact you.
