Residential Boilers - Gas Boilers Series MI-x™ Boiler
The Series MI-x™ is a residential, cast iron, hot water boiler with an 84% AFUE. Fully packaged and ready-to-install, the MI-x is available for natural draft chimney applications (see manual for venting instructions). The natural or LP gas-fired boiler is available in seven sizes and features a Hydrostat IC Integrated Boiler Control which provides dependable spark ignition, low water cut-off and boiler reset for energy savings! The Control also features two circulator outputs allowing for domestic hot water priority/heating zone. Standard equipment for the Series MI-x includes an automatic vent damper, 30 PSI safety relief valve, non-combustible floor pan and temperature-pressure gauge. An insulated powder coated steel jacket on every MI-x boiler reduces boiler heat loss. The Series MI-x is backed by a complete warranty!
Product Details:
Type: Residential
Construction: Cast Iron
Fuel: Gas-Fired (Natural or LP)
Input: 70 to 280 MBH
Output: 59 to 234 MBH
Venting: Natural Draft
Trim: Water
Ignition: Spark Pilot
| Series MI-x™ |
Water
Content |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Boiler Model Number |
Boiler Input | Heating Capacity² |
Net Ratings Water¹ |
AFUE², % |
|||||
| MBH | kW | MBH | kW | MBH | kW | Gallon | Liter | ||
| MI-x-03 | 70 | 21 | 59 | 17 | 51 | 15 | 84 | 2 | 7.57 |
| MI-x-04 | 105 | 31 | 88 | 26 | 77 | 23 | 84 | 3 | 11.35 |
| MI-x-05 | 140 | 41 | 117 | 34 | 102 | 30 | 84 | 4 | 15.14 |
| MI-x-06 | 175 | 51 | 146 | 43 | 127 | 37 | 84 | 5 | 18.93 |
| MI-x-07 | 210 | 62 | 176 | 52 | 153 | 45 | 84 | 6 | 22.71 |
| MI-x-08 | 245 | 72 | 205 | 60 | 178 | 52 | 84 | 7 | 26.5 |
| MI-x-09 | 280 | 82 | 234 | 69 | 203 | 60 | 84 | 8 | 30.28 |
- Net water ratings based on an allowance of 1.15. Consult factory before selecting a boiler for installations having unusual
piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc. - 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.
| Boiler Model Number | Jacket | Rear of Jacket to c/l of Vent “D” | Left of Jacket to c/l of Vent “E” | Vent Size Diameter “F” | Height to Return “G” | Height to Gas Inlet “H” | Overall Depth “J” | Gas Inlet NPT”K” | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (Depth) “A” | (Depth) “B” | (Depth) “C” | ||||||||||||||||||
| inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | mm | |
| MI-x-03 | 26-3/4 | 679 | 14 | 356 | 40 | 1016 | 1-1/8 | 29 | 7 | 178 | 4 | 102 | 16-1/4 | 413 | 18-3/8 | 467 | 32 | 813 | 1/2 | 13 |
| MI-x-04 | 26-3/4 | 679 | 16 | 406 | 40 | 1016 | 1-1/8 | 29 | 8 | 203 | 5 | 127 | 16-1/4 | 413 | 18-3/8 | 467 | 32 | 813 | 1/2 | 13 |
| MI-x-05 | 26-3/4 | 679 | 19 | 483 | 40 | 1016 | 1-1/8 | 29 | 9-1/2 | 241 | 6 | 152 | 16-1/4 | 413 | 18-3/8 | 467 | 32 | 813 | 1/2 | 13 |
| MI-x-06 | 26-3/4 | 679 | 22 | 559 | 40 | 1016 | 1-1/8 | 29 | 11 | 279 | 6 | 152 | 16-1/4 | 413 | 18-3/8 | 467 | 32 | 813 | 1/2 | 13 |
| MI-x-07 | 26-3/4 | 679 | 25 | 635 | 40 | 1016 | 1-1/8 | 29 | 12-1/2 | 318 | 7 | 178 | 16-1/4 | 413 | 18-3/8 | 467 | 34 | 864 | 3/4 | 19 |
| MI-x-08 | 26-3/4 | 679 | 28 | 711 | 40 | 1016 | 1-1/8 | 29 | 14 | 356 | 7 | 178 | 16-1/4 | 413 | 18-3/8 | 467 | 34 | 864 | 3/4 | 19 |
| MI-x-09 | 26-3/4 | 679 | 31 | 787 | 40 | 1016 | 1-1/8 | 29 | 15-1/2 | 394 | 8 | 203 | 16-1/4 | 413 | 18-3/8 | 467 | 34 | 864 | 3/4 | 19 |