Greenhouse Unit Heaters Redefined
The revolutionary tubular heat exchanger inside the Lennox LF-24 series of greenhouse heaters ensures you years of performance and high efficiency. Combustion is precise because of special "in-shot" burners and fan assisted exhaust. Equipped with a TrueLeaf Combustion Air Separator, it's bullet-proof.
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BoilerSmith® Firebox Boilers

CF3 Packaged Firetube Series 15 HP to 700 HP

TrueLeaf is proud to offer BoilerSmith boilers.

These solid, proven boilers come from a Canadian manufacturer that has a 100+ year history. BoilerSmith is unique as boiler manufacturers go…a small firm that has a high degree of familiarity with the needs of the commercial greenhouse industry, and a high level of flexibility in design to match the best product to the application. The “firebox” style boiler is ideal for greenhouse heat applications, they offer good efficiency, compact size, simple design and reliable serviceability.

Available with gas, oil, or multi-fuel burners, each boiler is built to exacting quality standards and test-fired before shipping. Because these boilers are custom-built per project, they take some planning to order. Best practice is to give us 12 weeks lead time for most sizes.

Excellent Efficiency

  • Surpasses watertube/low volume/coiltube
  • Surpasses cast iron/copper fin/vertical
  • Ranges from 83 to 88%

Engineered to Last

  • Thicker, better steel and bigger stay-rod
  • 100% water-cooled

Gas or Oil Flexibility

  • Forced draft firing yields higher efficiency
  • Equipped with advanced world-class burners

For the Environment

  • Inherently low NOx and CO
  • Many sizes to match loads and cut fuel use
  • Two-stage and full modulation for lower stack emissions

Exceptional Design

  • Maintenance-free wetback runs cooler and enhances efficiency
  • Less costly straight tubes
  • 90-year heritage

Type Boiler
Model #

 Horse
Power		 BTUH
Output		 Efficiency
Rating		 Shipping
Weight lbs		 Width
inches		 Height
inches		 Depth
inches
COMPAK CF3-15 15 502,000 80% 2,700 53 63 34.2
COMPAK CF3-20 20 669,000 80% 3,000 63 63 34.2
COMPAK CF3-25 25 837,000 80% 3,350 74 63 34.2
COMPAK CF3-30 30 1,004,000 80% 3,700 85 63 34.2
COMPAK CF3-35 35 1,172,000 80% 4,000 95 63 34.2
COMPAK CF3-40 40 1,339,000 80% 4,200 93 70 40
COMPAK CF3-45 45 1,506,000 80% 4,600 98 70 40
COMPAK CF3-50 50 1,674,000 80% 4,900 105 70 40
COMPAK CF3-55 55 1,841,000 80% 5,200 94 73 44.8
COMPAK CF3-60 60 2,008,000 80% 5,400 101 73 44.8
COMPAK CF3-70 70 2,343,000 80% 6,000 114 73 44.8
COMPAK CF3-80 80 2,678,000 80% 6,300 123 73 44.8
COMPAK CF3-90 90 3,012,000 80% 6,600 125 80 48
COMPAK CF3-100 100 3,347,000 80% 7,000 132 80 48
COMPAK CF3-125 125 4,184,000 80% 8,000 149 80 48
COMPAK CF3-150 150 5,021,000 80% 12,900 148 90 53.5
COMPAK CF3-175 175 5,858,000 80% 14,400 165 92 53.5
COMPAK CF3-200 200 6,694,000 80% 15,700 155 103 59.2
COMPAK CF3-225 225 7,531,000 80% 17,200 171 103 59.2
COMPAK CF3-250 250 8,368,000 80% 18,400 183 103 59.2
COMPAK CF3-275 275 9,205,000 80% 21,000 169 120 68.2
COMPAK CF3-300 300 10,042,000 80% 22,200 180 120 68.2
COMPAK CF3-325 325 10,878,000 80% 22,900 186 120 68.2
COMPAK CF3-350 350 11,715,000 80% 26,200 168 129 75
COMPAK CF3-400 400 13,389,000 80% 29,200 190 129 75
COMPAK CF3-450 450 15,062,000 80% 32,400 194 139 82
COMPAK CF3-500 500 16,736,000 80% 35,500 207 139 82
COMPAK CF3-550 550 18,410,000 80% 38,000 222 139 82
COMPAK CF3-600 600 20,083,000 80% 44,000 219 148 98.2
COMPAK CF3-650 650 21,757,000 80% 46,600 232 148 98.2
COMPAK CF3-700 699 23,402,000 80% 48,500 247 148 98.2