Series MI

Products » Residential Boilers » Series MI

The improved Series MI residential, cast iron, hot water boiler is fully packaged and ready to install. This atmospheric, gas-fired boiler is designed for natural draft use with a conventional chimney. The Series MI boiler is available with either standing pilot or intermittent ignition, and is available as natural or LP gas. The integral draft diverter provides a low-profile design, allowing the boiler to be installed in areas with low clearance. Standard Honeywell controls are easily accessible, making the Series MI boiler simple to install and service. Standard equipment includes a Taco circulator, a flame rollout safety shutoff switch and a vent safety shutoff switch.

Type: Residential
Construction: Cast Iron
Fuel: Gas-Fired (Natural or LP)
Input: 70 to 260 MBH
Output: 58 to 211 MBH
Venting: Natural Draft
Trim: Water
Ignition: Standing Pilot or Intermittent

 

  • Packaged Residential Hot Water Boilers
  • Natural or LP Gas
  • Natural Draft Venting
  • Standing Pilot or Intermittent Ignition
  • Low Profile Design

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Series MI/MIH Water Content, gal
Model Number Input, MBH Heating Capacity3, MBH Net I=B=R Ratings Water1,2, MBH Standing Pilot AFUE3, % Intermittent Ignition AFUE3, %
MI-03 70 58 50 80.2 82.2 4.72
MI-04 105 86 75 80.2 82.1 6.00
MI-05 140 115 100 80.2 82.0 7.28
MI-06 175 143 124 80.3 82.0 8.56
MI-07 195 160 139 80.5 82.0 9.84
MI-08 227.5 186 162 80.3 82.0 11.12
MI-09 260 211 183 80.1 82.0 12.40

1 Net I=B=R water ratings based on an allowance of 1.15.

2 Consult factory before selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc.

3 Heating Capacity and Annual Fuel Utilization Efficiency (AFUE) ratings are based on U.S. Government test. Before purchasing this appliance, read important information about its estimated annual energy consumption or energy efficiency rating that is available from your retailer.

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Series MI Boiler Dimensions

BoilerModelNumber Jacket Left Jacket to c/l of"D" Rear Jacket to c/l of"E" Vent "F"
Width"A" Depth"B" Top to Floor"C"
MI-03 12 1/2" 26 5/8" 31 3/8" 6 1/4" 20 1 3/16" 5"
MI-04 15 7/8" 26 5/8" 31 3/8" 7 1 1/16" 20 1 3/16" 5"
MI-05 19 1/4" 26 5/8" 31 3/8" 9 5/8" 21 1 3/16" 6"
MI-06 22 5/8" 26 5/8" 31 3/8" 11 5/16" 21 1 3/16" 6"
MI-07 26" 26 5/8" 31 3/8" 13" 21 1 3/16" 7"
MI-08 29 3/8" 29 5/8" 31 3/8" 14 1 1/16" 23 5/16" 8"
MI-09 32 3/4" 29 5/8" 31 3/8" 16 3/8" 24 5/16" 8"

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