Warmboard
Warmboard designs and manufactures hydronic radiant floor heating systems, including aluminum-faced plywood panels and its integrated Warmboard Comfort System with boiler, controls, and wireless thermostats. The company sells direct to homeowners, builders, architects, and plumbers across North America.
- Company typePrivate
- Founded1998
- HeadquartersScotts Valley, United States
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What Warmboard does
Warmboard is a US-based manufacturer of hydronic radiant floor heating systems, founded in 1998 and headquartered in Scotts Valley, California. The company's core technology is an aluminum-faced plywood panel (0.025" aluminum bonded to either Douglas Fir 7-ply plywood for structural applications or OSB for remodels) with PEX tubing routed through it; heated water circulates through the tubing to deliver radiant floor heating. The panel doubles as the subfloor in new-construction applications, eliminating the separate gypcrete or concrete pour used by competing radiant systems and enabling response times measured in hours rather than days.
The company's product portfolio centers on the Warmboard Comfort System (WCS), a fully integrated end-to-end package that bundles the panels with PEX tubing, manifolds, the Warmsource boiler (a Lochinvar Noble Fire Tube Boiler paired with a Grundfos Alpha pump, automatic air eliminator, and pre-plumbed expansion tank), a proprietary Smart Reset Controller (SRC), wireless manifold controllers, and LoRa (915 MHz) wireless thermostats. The SRC monitors per-zone temperature changes and modulates boiler water temperature using a proprietary algorithm; the system operates at 115°F, the lowest water temperature in the radiant industry, which maximizes condensing-boiler efficiency and enables integration with geothermal, solar, and fuel-cell cogeneration sources. Warmboard-S (1-1/8" structural panels) targets new construction while Warmboard-R (13/16" OSB panels) targets remodels; both carry an APA Exposure 1 Bond rating for jobsite durability and an ICC-ES code compliance report (ESR-1421).
Warmboard sells direct through regional and project managers, with quotes generated from customer-submitted floor plans and pricing tied to Conditioned Floor Area in square feet; every WCS sale includes custom mechanical design as a service line. Its customer base spans homeowners, architects and designers, builders and installers, and a secondary tier of plumbers and radiant installers, distributed across the United States, Canada, and select international markets. The company is founder-led (CEO and founder Terry Alsberg), privately held without disclosed institutional capital, has cumulatively sold over 40 million square feet of panels across 25+ years, and operates with a headcount in the 51-100 range.
Warmboard firmographics
Firmographics- Name
- Warmboard
- Legal name
- Warmboard, Inc.
- Website
- https://warmboard.com
- Company type
- Private
- Founded year
- 1998
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Warmboard designs and manufactures hydronic radiant floor heating systems, including aluminum-faced plywood panels and its integrated Warmboard Comfort System with boiler, controls, and wireless thermostats. The company sells direct to homeowners, builders, architects, and plumbers across North America.
- Ownership category
- akta.pro rank
Where Warmboard is headquartered
LocationHeadquarters
- HQ city
- Scotts Valley
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Warmboard business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales
Revenue model
- Radiant Heating Panels: Sale of Warmboard-S and Warmboard-R radiant floor heating panels to builders, contractors, and homeowners for new construction and renovation projects.
- Warmboard Comfort System (WCS): Complete radiant heating system including panels, tubing, manifolds, Warmsource boiler, controllers, and thermostats sold as an integrated package. Custom mechanical designs included.
- Custom System Design: Every new Warmboard Custom System includes custom plans and engineering design. Project managers guide customers throughout the process.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Custom quote based on project requirements |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels6 records
Warmboard product offering
Product offeringCore offering
Warmboard designs, manufactures, and sells complete hydronic radiant floor heating systems centered on aluminum-faced plywood panels (Warmboard-S for new construction and Warmboard-R for remodels) that circulate hot water through PEX tubing. The flagship offering, the Warmboard Comfort System (WCS), bundles the panels with the Warmsource boiler, Smart Reset Controller, manifold controllers, and wireless thermostats into a pre-configured end-to-end package sold direct to homeowners, builders, architects, and plumbers across North America.
Product overview
Warmboard offers a portfolio of hydronic radiant floor heating products centered on its flagship Warmboard Comfort System (WCS), a complete end-to-end heating solution. The WCS integrates two panel types—Warmboard-S (structural, for new construction) and Warmboard-R (for remodeling)—with proprietary components including the Warmsource boiler, Smart Reset Controller, Manifold Controllers, and wireless thermostats. All components arrive pre-configured and integrated for seamless installation. The system uses LoRa wireless technology for in-home communication and supports zoning with individual thermostat control per zone.
Differentiator
Problem solved
Functional benefit
Brands
- Warmboard Comfort System (WCS): Complete hydronic radiant floor heating system including panels, tubing, manifolds, Warmsource boiler, thermostats and controls.
- Warmboard-S
- Warmboard-R
- Warmsource
Products and services
- Warmboard Comfort System (WCS) A complete end-to-end hydronic radiant floor heating system that bundles Warmboard-S or Warmboard-R panels, PEX tubing, manifolds, the Warmsource boiler, manifold controllers, wireless thermostats, and a bridge, with all components pre-configured for seamless integration. Designed for installation by general contractors or plumbers in new homes and remodels.
- Warmboard-S Structural Radiant Panel A 1 1/8-inch thick structural radiant panel made of Douglas Fir 7-ply plywood with an aluminum face, sold in full-faced tongue and groove 4' x 8' sheets. Used as subfloor in new construction projects and carries an APA Exposure 1 Bond rating confirming resistance to rain, snow, or ice during construction.
- Warmboard-R Remodeling Radiant Panel A 13/16-inch thick remodeling radiant panel made of aspen and pine-oriented strand board (OSB), sold in square-edged 2' x 4' panels. Designed for retrofit and renovation projects where a thinner, lighter panel profile is needed.
Quantifiable outcome
- 25% more efficient than forced air heating systems
- +6 more outcomes
Companies that use Warmboard
Customer profileNamed customers10 records
Segments4 records
Ideal customer profiles4 records
Warmboard technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Warmboard partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered flagship and core.
- Michelle Kaufmann StudioflagshipMichelle Kaufmann Studio was the architect for the Smart Home exhibit at the Museum of Science & Industry. The firm specializes in sustainable design and has used Warmboard in approximately 10 or more projects, viewing it as smart, efficient, and ideal for modular construction.
- All American HomesflagshipAll American Homes, one of the nation's leading builders of residential systems-built modular housing, collaborated on the Smart Home exhibit project. They found Warmboard works better with their construction process than other radiant products because it is the subfloor and simple to install.
- Museum of Science & Industry, ChicagoflagshipThe Museum commissioned the Smart Home exhibit featuring Warmboard radiant heating. The museum sought a real home demonstrating cutting-edge green technology and sustainable materials, selecting Warmboard for its efficient, moderate-cost radiant heating system.
- LochinvarcoreLochinvar manufactures the Noble Fire Tube Boiler that is the top portion of the Warmsource unit, the heart of the Warmboard Comfort System. This is a key technology partnership where Lochinvar's boiler is integrated into Warmboard's proprietary heating system.
- GrundfoscoreGrundfos Alpha pump is included in the Warmsource boiler unit as part of the Warmboard Comfort System, providing efficient water circulation.
Scale indicators6 records
Recent moves6 records
Expansion highlights5 records
Warmboard competitors and assessment
Company assessmentDirect peers
- Viega: Manufacturer of plumbing, hydronic heating, and radiant systems including PEX and manifolds; competes head-to-head with Warmboard in residential radiant floor heating installations.
- Slant/Fin: Manufacturer of hydronic boilers, baseboard, and radiant heating products for residential and light commercial; overlaps with Warmboard's Warmsource boiler and broader hydronic system offering.
- Uponor: Global manufacturer of PEX-based hydronic radiant heating and plumbing systems serving residential and commercial markets; directly comparable product category, target customer (builders, plumbers, homeowners), and channel model.
- REHAU: European-origin manufacturer of radiant floor heating systems (PEX tubing, manifolds, controls) and polymer-based building solutions; comparable hydronic radiant product offering and global distribution.
- Heatlink Group: Manufacturer of PEX radiant heating systems, manifolds, and controls primarily serving North American residential and light commercial markets; close comparable in product mix and channel.
- Roth Industries: Manufacturer of radiant floor heating panels, PEX tubing, and oil-fired boiler alternatives; comparable hydronic radiant product set for residential new construction.
Broad incumbents
- Bosch Thermotechnology: Global HVAC and hydronic boiler manufacturer offering complete heating solutions including condensing boilers that integrate with radiant systems; broader portfolio and well-capitalized versus Warmboard.
- Watts Water Technologies: Diversified manufacturer of plumbing, flow control, and hydronic products including radiant heating components; broader portfolio than Warmboard but overlapping hydronic and boiler-adjacent categories.
Others
- Lochinvar: Supplier-partner whose Noble Fire Tube Boiler is integrated into Warmboard's Warmsource unit; comparable as a competing high-efficiency boiler brand in the same hydronic channel.
Emerging players
- NuHeat (nVent Electric): Electric radiant floor heating mat and cable manufacturer owned by nVent; competes with Warmboard for retrofit and lower-cost residential radiant applications, particularly in remodels.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Warmboard social profiles
Digital presenceWarmboard compliance and trust
Trust signalCompliance3 records
Warmboard financial estimates
Financial estimateRevenue estimate
Valuation estimate
Warmboard leadership team
Management profileNumber of profiles
Profiles1 record
Warmboard funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Warmboard M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Warmboard
What does Warmboard do?
Warmboard designs, manufactures, and sells complete hydronic radiant floor heating systems centered on aluminum-faced plywood panels (Warmboard-S for new construction and Warmboard-R for remodels) that circulate hot water through PEX tubing. The flagship offering, the Warmboard Comfort System (WCS), bundles the panels with the Warmsource boiler, Smart Reset Controller, manifold controllers, and wireless thermostats into a pre-configured end-to-end package sold direct to homeowners, builders, architects, and plumbers across North America.
Is Warmboard a public or private company?
Warmboard is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Warmboard founded?
Warmboard was founded in 1998. It employs 51 to 100 people.
Where is Warmboard based?
Warmboard is headquartered in Scotts Valley, United States, in the North America region.
How does Warmboard make money?
Three revenue lines are on record. Radiant Heating Panels are the primary driver. The others are warmboard Comfort System (WCS) and custom System Design.
Who are Warmboard's main competitors?
Direct peers on record are Viega, Slant/Fin, Uponor, REHAU, Heatlink Group and Roth Industries. Broad incumbents are Bosch Thermotechnology and Watts Water Technologies. Lochinvar is listed as an others. NuHeat (nVent Electric) is listed as an emerging player.
Does Warmboard have an API?
No public API is recorded for Warmboard.