LAARS® MagnaTherm® HTD
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High Turndown Condensing Boiler and Volume Water Heater PACKED WITH FEATURES • Up to 96% Thermal Efficiency • 20:1 Modulation All Sizes • TRU TRAC O2 Trim • LAARS LINC™ Intuitive Touch Screen Controls • VARI-PRIME® Pump Control • Indoor and Outdoor • 10 Year Heat Exchanger Warranty

THE MAGNATHERM® HTD Office Buildings & High-Rises Every commercial heating system is unique and as such requires a boiler that can respond to system fluctuations, while maintaining the energy conservation standards required by today’s building owners. Such a boiler exists in the innovative MagnaTherm HTD. On board every MagnaTherm HTD boiler is the unique Tru Trac O2 trimming system and Laars Vari-Prime pump control that balances 20:1 turndown, combustion, and water flow to dramatically reduce boiler energy consumption. MagnaTherm HTD is designed, engineered and manufactured at Laars...

OPTIMAL BALANCE OF FORM AND FUNCTION The MagnaTherm boiler’s small footprint, slim vertical design and removable top section help it to fit into tight mechanical rooms. It’s optional electrical packages allow for easy pairing with various field supply voltages. A large easy-to-navigate color touch screen display results in quick setup and diagnostics, and allows up to 8 MagnaTherms to be controlled in a cascading boiler bank. STANDING APART FROM THE OTHERS 1. 20:1 turndown gas train – high accuracy air – gas control valve system. 2. Tru Trac O2 Trim Control with proprietary Laars algorithms...

LAARS LINC™ LAARS LINC CONTROLS ARE A STEP BEYOND SMART, THEY’RE INTUITIVE Powerful control logic is easily managed via icon driven, touch screen technology. The result is an intuitive to use control system with the intelligence to manage installations from the simple to the complex. ADVANCED EASE OF USE FUNCTIONALITY: • HOME SCREEN BOILER STATUS: The home screen shows the operational status of the boiler; all set points, status of each pump, and boiler run status. • QUICK START CONFIGURATOR: Simply touch the “Quick Start” icon on the home screen to access the most commonly-used parameters...

TRU TRAC HIGH TURNDOWN O2 TRIM TECHNOLOGY Each MagnaTherm HTD unit is equipped with the proprietary Laars Tru Trac O2 combustion control system. Tru Trac Electric Fuel-Air-Ratio control algorithms actively manage the combustion process to optimize efficiency and emission levels. Oxygen levels produced during combustion are monitored in real-time, throughout the entire 20-1 turndown range of the MagnaTherm HTD to ensure optimal operation. Just like a high-performance automobile, the MagnaTherm HTD Tru Trac system adjusts air-to-fuel mixture to maintain ideal performance. No longer compromise...

The combined energy savings of the MagnaTherm HTD ultra-high efficiency with Tru Trac O2 trim and Vari-Prime pump control leads the industry. Only the Laars MagnaTherm HTD with built in Vari-Prime, Tru Trac O2 controls and 20:1 turndown can offer such savings in one package! SIZING DATA Model Minimum Input Rate Maximum Input Rate Minimum Output Rate Maximum Output Rate Thermal Combustion Efficiency (%) Efficiency (%) Product Weight Operating Weight Shipping Weight Water Content BOILER WATER FLOW REQUIREMENTS 25oF Model Head Loss* Feet Head Loss* Feet Head Loss* Feet Minimum Boiler Flow...

VOLUME WATER HEATER WATER FLOW REQUIREMENTS 1-10 Grains Per Gallon Hardness Model Flow Rate Headloss* (gpm) (ft) 1 1-15 Grains Per Gallon Hardness Flow Rate Headloss* (gpm) (ft) 1-10 Grains Per Gallon Hardness Model Flow Rate Headloss* (l/m) (m) 1 1-15 Grains Per Gallon Hardness Flow Rate Headloss* (l/m) (m) Air Inlet 2” Gas ALL Sizes Touchscreen Display Pressure Relief Valve Electrical Boxes Water Outlet Water Inlet Optional Flanges, Contact Factory SIDE VIEW FRONT VIEW Condensate Trap 1” Drain Hose on ALL Sizes * Up to 100 equivalent feet of vent. See manual for det

View our entire product line at www.Laars.com Customer Service and Product Support: 800.900.9276 • Fax 800.559.1583 Headquarters: 20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • Fax 603.335.3355 9 Brigden Gate, Halton Hills, Ontario, Canada, L7G 0A3 • 905.203.0600 • Fax 905.636.0666 www.LAARS.com Litho in U.S.A. © Laars® Heating Systems Co. 20-06 Documen