What Tjernlund Products does

Tjernlund Products, Inc. is a privately held, fourth-generation family-owned manufacturer of mechanical ventilation, exhaust, and combustion-drafting equipment founded in 1938 and headquartered in White Bear Lake, Minnesota. The company designs and builds a broad catalog that includes dryer duct booster fans (Dryer Duct Booster®, Duct Booster®, M-Series), room-to-room and level-to-level air transfer fans (AireShare™ AS1, AS2, ASLL), power venters and draft inducers (Auto-Draft®, SideShot, SS1/SS2, HS1–HS5, RT-series), crawl space and basement ventilation equipment, and radon mitigation systems (Radon VAC, RMS160, RX2, RV2), along with electronic controllers (CPC-3, MPC, UC1, MAC1E/MAC4E). Notable proprietary elements include the Lint Blitzer material-handling wheel used in dryer duct boosters (5-year no-clog guarantee, UL 705 / DEDPV certification to IRC-2015) and modulating demand-based controllers (CPC-3, MPC) used in commercial multi-dryer and engineered combustion-air applications.

The firm operates two commercial divisions: Distributor Stocked Products, which moves standard residential and commercial ventilation items through a wholesale distributor network serving HVAC contractors, plumbers, and builders, and Engineered Specified Systems, which delivers quote-based custom commercial solutions supported by field sales representatives. Customer segments span individual homeowners and residential builders, commercial laundry operations (laundromats, college dormitories), commercial buildings and property management companies (apartment complexes, condominiums, offices), and heating-equipment contractors — with named engagements including Williams College (54-dryer laundromat), Tacoma Housing Authority, International Market Square, Midwestern University, and Fox Lake Laundry.

Tjernlund manufactures domestically, has accumulated over 1 million SideShot installations, and reports no external institutional shareholders, no parent company, and no venture or private equity capital. The company relies on industry trade shows (HARDI, AHR Expo, IBS, The Clean Show), a sales-rep locator, social media presence, and an extensive case-study and specification document library for demand generation, with no public revenue, ARR, or profitability disclosures.

Name

Tjernlund Products

Legal name

Tjernlund Products, Inc.

Website

https://tjernlund.com

Company type

Private

Founded year

1938

Operating status

Operating

Headcount range

11–50 employees

Short description

Tjernlund Products is a fourth-generation, family-owned US manufacturer of mechanical ventilation and exhaust equipment — including dryer duct boosters, transfer fans, draft inducers, and radon mitigation systems — sold through wholesale distributors and engineered-specified commercial channels since 1938.

Ownership category

akta.pro rank

Product category

Mechanical Ventilation & Exhaust Equipment

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers (42373), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Wholesale-Hardware & Plumbing & Heating Equipment & Supplies (5070)

akta.pro primary industry

Ventilation, Ducting & Air Distribution Equipment (IMAHAKAG)

akta.pro secondary industries

Fans, Blowers & Ventilation Units (Supply/Exhaust/Inline) (IMADANAB), HVAC, Water Heaters & Indoor Air Quality Distribution (CRAOAFAJ)

Keywords

• Mechanical ventilation equipment
• Dryer duct booster fans
• Draft inducer systems
• Radon mitigation fans
• Engineered HVAC ventilation

Headquarters

HQ city

White Bear Lake

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Ventilation Equipment Sales: Sale of mechanical ventilation and exhaust products including dryer duct boosters, transfer fans, draft inducers, and radon mitigation systems. Products are sold through wholesale distributor network and specified systems channels for commercial applications.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Tjernlund Products designs and manufactures mechanical ventilation and exhaust equipment for residential and commercial buildings, spanning dryer duct booster fans, room-to-room and level-to-level transfer fans (AireShare), duct booster fans, draft inducers, side-wall and rooftop power venters, radon mitigation systems, and engineered-specified modulating exhaust and make-up air systems with proprietary controllers (CPC-3, MPC). The portfolio is sold via U.S. wholesale distributors for standard products and via field sales representatives for engineered commercial applications. All products are manufactured in the United States and carry multi-year warranties including a 5-year no-clog guarantee on dryer duct boosters.

Product overview

Tjernlund Products is a premier manufacturer of mechanical ventilation and exhaust solutions for residential and commercial applications. The company offers three main product categories: (1) Distributor Stocked Products including the LB2 Dryer Duct Booster® and AireShare™ Transfer Fans (AS1, AS2, ASLL) for consumer applications, Duct Booster® Fans (DB-2, EF-series, M-Series), crawl space ventilators (V1, V1D, V2D), and various draft inducers and power venters; (2) Engineered Specified Systems including VSUB Variable Speed Universal Blowers, modulating pressure controllers, and commercial capacity dryer booster systems (CDB8); and (3) Modulating Dryer Exhaust Systems with CPC-3 controllers for commercial multi-dryer installations. All products are manufactured in the USA and backed by comprehensive accessory controls (UC1, MAC1E/MAC4E, PS1503, DH10/DH2P) and replacement parts support. The product portfolio spans draft control, exhaust ventilation, indoor air quality, radon mitigation, and combustion air intake applications.

Differentiator

Problem solved

Functional benefit

Brands

• Dryer Duct Booster®: No-clog dryer duct booster fans with 5-year warranty for residential and commercial dryers
• AireShare™
• Modulating Dryer Exhaust Systems
• Duct Booster®
• Auto-Draft®
• SideShot

Products and services

• LB2 Dryer Duct Booster® No-clog residential dryer duct booster fan with Lint Blitzer wheel that boosts exhaust velocity in ducts up to 150 equivalent feet and reduces drying times by 50% or more; intended for HVAC contractors and homeowners with long dryer vent runs.
• LB2XL Commercial Dryer Duct Booster® Commercial-grade dryer duct booster designed for longer duct runs and heavier commercial dryer installations.
• CDB8 Commercial Capacity Dryer Booster System Commercial dryer booster system for multi-dryer installations, enabling exhaust vents to run hundreds of feet in any direction and reducing vent diameter by up to 50%; intended for commercial laundromats, college dormitories, and multi-dryer facilities.
• AireShare™ AS1 and AS2 Room-to-Room Transfer Fans Room-to-room air transfer fans that quietly move cool floor-level or warm ceiling-level air between rooms; for homeowners and HVAC contractors addressing uneven heating/cooling in homes, condos, hotels, and buildings with split systems, PTACs, fireplaces, or baseboard heat.
• AireShare™ ASLL Level-to-Level Transfer Fan Hard-wired level-to-level transfer fan that moves warm or cool air between floors in either direction depending on installation orientation; for multistory residential and light-commercial buildings with stratified temperatures.
• DB-2 Duct Booster® Fan Duct booster fan for boosting airflow in ducts or powered air intakes and exhausts; suited to outdoor air supply, lunch-room exhaust, and spot ventilation across residential and commercial applications.
• EF Series Duct Booster Fans (EF-6 through EF-14) Duct booster fan family in six through 14 inch duct sizes, usable as exhaust or air intake fans with optional speed controls and Duct Airstat pressure switches; targeted at HVAC contractors serving residential and commercial ducted systems.
• M-Series Metal Housing Fans (M-4, M-6, M-8, M-10) Metal-housing fans engineered for long duct runs and exacting air supply/exhaust performance; available in M-4, M-6, M-8, and M-10 sizes for commercial and residential air movement.
• Radon VAC Radon Mitigation System Active sub-slab/exhaust radon mitigation system that reduces radon from highly elevated concentrations (e.g., 126.3 pCi/L to 2.3 pCi/L) to safe levels; targeted at residential radon remediation contractors and homeowners.
• VSUB Series Variable Speed Universal Blowers Variable speed universal blowers for commercial boiler rooms and engineered specified ventilation systems, offered in 8/12/16/20 inch sizes with variable-speed control for demand-based operation.
• SS1 Side Wall Vent System Side wall vent system comprising UC1 controller, fan prover, and high-limit switch for safe venting of heating equipment through exterior walls; targeted at HVAC contractors and installers needing chimney alternatives.
• SS2 Side Wall Vent System Enhanced side wall vent system with stainless-steel construction and UC1 control for demanding combustion-equipment venting applications; for HVAC professionals requiring durable through-wall venting.
• GPAKJ/GPAK1 Side Wall Vent Systems Side wall venting packages for through-wall combustion gas venting of residential heating equipment; supplied to HVAC contractors and installers as integrated kits.
• Auto-Draft® Draft Inducers (AD-1, D-3, DJ-3, HD, I, IL, XL) Inline and rooftop Auto-Draft draft inducers (AD-1, D-3, DJ-3, HD, I, IL, XL) that establish positive draft when restricted boilers, undersized chimneys, or building negative pressures prevent proper combustion exhaust; for HVAC contractors and heating professionals.
• VP-2F / VP-3F Power Venters Power venters for through-wall or through-roof venting of combustion gases, integrating timer/relay and high-limit safety controls; targeted at HVAC contractors venting residential and light-commercial heating equipment.
• HS1 / HS2 / HSJ Power Venters Power venters with integrated UC1 control circuit for combustion-equipment venting in residential and commercial applications, available in HS1, HS2, and HSJ sizes for matched equipment capacity.
• HS3 / HS4 / HS5 Commercial Power Venters Heavy-duty commercial power venters with UC1 integrated control for larger heating equipment and multi-appliance installations; targeted at mechanical contractors specifying engineered commercial venting systems.
• RT750 / RT1500 Rooftop Inducers Rooftop-mounted draft inducers (RT750, RT1500) for venting heating equipment through roof installations, with optional speed control on the RT1500H variant; for HVAC contractors working on rooftop and chimney-less installations.
• Crawl Space Ventilators (V1, V1D, V2D) Crawl space ventilation fans (V1, V1D, V2D) running constantly to reduce moisture, vent radon, and prevent mold and structural rot; available in standard, digital, and dual-speed configurations for residential foundations.
• FAI4 Fresh Air Intake with DBM4 Fan Assembly Fresh-air intake system (FAI4) with DBM4 fan assembly for introducing conditioned outside air into commercial and institutional buildings; targeted at mechanical contractors supplying make-up air for combustion and ventilation balance.
• X2D / X2R Xchanger Reversible Basement Fan Reversible basement fan with dehumidistat control for managing airflow and moisture in residential basements; intended for homeowners and contractors addressing dampness, odors, and stale air.
• CPC-3 Modulating Controller Demand-based modulating controller that automatically adjusts dryer exhaust and make-up air based on the number of dryers in operation; for commercial multi-dryer facilities including laundromats, dormitories, and apartment laundry rooms.
• MPC Modulating Pressure Controller Modulating pressure controller for engineered specified systems, managing draft and ventilation control for commercial heating and exhaust installations; specified by mechanical engineers in commercial projects.

Quantifiable outcome

• Reduces drying times 50% or more
• +5 more outcomes

Named customers11 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Greenheck Fan Corporation: Greenheck is one of the largest manufacturers of commercial and industrial fans, dampers, and ventilation equipment — competing with Tjernlund's engineered specified systems and commercial ventilation offerings at a much larger scale.
• Loren Cook Company: Loren Cook manufactures commercial and industrial fans, blowers, and ventilation equipment — overlapping with Tjernlund's engineered specified systems division and commercial-grade draft inducers.
• Panasonic Eco Solutions (Ventilation): Panasonic offers residential and light commercial ventilation fans, including energy recovery ventilators and whole-house fans, competing with Tjernlund's transfer fans and IAQ products at scale.
• Broan-NuTone: Broan-NuTone is a major residential ventilation brand offering bathroom fans, range hoods, and IAQ products, competing with Tjernlund at the broader ventilation category level across wholesale and retail channels.

Regional players

• Systemair: Systemair is a European-based global ventilation manufacturer with US distribution offering fans and air handling units — comparable in product category to Tjernlund but operating at a larger international scale.

Direct peers

• Continental Fan Manufacturing: Continental Fan manufactures inline duct fans, centrifugal blowers, and ventilation products for residential and commercial applications, directly overlapping with Tjernlund's duct booster and inline fan portfolio.
• Soler & Palau (S&P): Soler & Palau produces a wide range of fans and ventilation products including duct boosters and inline fans that compete directly with Tjernlund's product lines in the US market through wholesale distribution.
• Field Controls: Field Controls specializes in draft inducers, power venters, and combustion air products for HVAC systems — a close direct competitor to Tjernlund's Auto-Draft, SideShot, and HS-series power venter product lines.
• RadonAway: RadonAway specializes in radon mitigation fans and accessories — the closest direct competitor to Tjernlund's Radon VAC, RMS160, RX2, and RV2 radon product family within the same specialized niche.
• Fantech: Fantech manufactures inline fans, duct boosters, and ventilation equipment for residential and light commercial HVAC applications — a direct product overlap with Tjernlund's Duct Booster and AireShare product lines.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/Tjernlund-Products-1521757678115358
• LinkedInlinkedin.com/company/tjernlund-products
• Xx.com/tjernlundfans

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tjernlund Products