VMP
Vertical Multi-Port Steam Boiler
Key Features:
- Efficiencies up to 84%
- No Tubes to Replace
- Small Footprint – Compact Design
Product Overview
Fulton’s VMP (Vertical Multi-Port) steam boiler is designed for heavy-duty applications with a pressure vessel thickness 30% greater than ASME requirements and heavy-walled schedule 80 flue pipes. The compact vertical design of the VMP has been proven through decades of successful installations and provides exceptional value over the lifetime of the boiler.
The VMP boiler is available in multiple fuels with features and options to ensure maximum seasonal efficiency.
The Rugged tubeless design allows the VMP to have exceptional value over the lifetime of the boiler, with fuel to steam efficiencies up to 84%, steam quality greater than 99%, and linkageless controls with turndowns up to 8:1.
Download BrochureBetter by Design
Competing boiler designs are prone to scale buildup and costly tube failure. The vertical tubeless design of Fulton’s VMP boiler minimizes these issues while maximizing system efficiencies and extending boiler life.
Specifications & Dimensions

Model | VMP-40 | VMP-49.5 | VMP-50 | VMP-60 | VMP-80 | VMP-100 | VMP-130 | VMP-150 |
|---|---|---|---|---|---|---|---|---|
| Specifications | ||||||||
| Fuel Input - Natural Gas (CFH) | 1,594 | 1,974 | 1,993 | 2,392 | 3,188 | 3,986 | 5,181 | 5,979 |
| Fuel Input - Propane (CFH) | 638 | 790 | 797 | 957 | 1,275 | 1,594 | 2,082 | 2,392 |
| Fuel Input - #2 Oil (CFH) | 11.4 | 14.1 | 14.3 | 17.1 | 22.8 | 28.5 | 37.1 | 42.8 |
| Steam Output (LB/HR) | 1,380 | 1,708 | 1,725 | 2,070 | 2,760 | 3,450 | 4,485 | 5,175 |
| Output (MBH) | 1,339 | 1,658 | 1,673 | 2,009 | 2,678 | 3,348 | 4,352 | 5,022 |
| Water Content - Operating (GAL) | 153 | 231 | 219 | 245 | 348 | 477 | 749 | 749 |
| Dimensions | ||||||||
| Height w/o Trim (IN) | 93 | 98 | 98 | 103 | 109 | 109 | 121 | 121 |
| Height w/ Trim (IN) | 105 | 109 | 109 | 115 | 121 | 121 | 133 | 133 |
| Width w/o Trim (IN) | 54 | 58 | 58 | 58 | 66 | 72 | 80 | 80 |
| Width w/ Trim (IN) | 83 | 87 | 87 | 87 | 97 | 105 | 112 | 112 |
| Depth (IN) | 97 | 101 | 101 | 101 | 113 | 119 | 130 | 137 |
| Burner Pull (IN) | 110 | 115 | 115 | 125 | 130 | 132 | 145 | 145 |
| Steam Outlet - 150 psi, trim (IN) | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 |
| Flue Outlet (IN) | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 16 |
| Weights | ||||||||
| Shipping Weight (LBS) | 5,475 | 6,160 | 6,800 | 7,075 | 9,425 | 10,510 | 12,890 | 12,890 |
| Operating Weight (LBS) | 6,750 | 8,085 | 8,635 | 9,120 | 12,335 | 14,490 | 19,140 | 19,140 |
VMP Documents
Find Your Local Representative
Fulton products are available for purchase through a worldwide network of authorized representatives. These representatives are highly qualified to assist you in the selection of Fulton equipment to best meet your application needs. To find your local Fulton representative, please follow the steps below.




