| Model |
MV 112 |
MV 120 |
MV 130 |
| Input Btu/hr. (max.) |
5,600 |
8,400 |
14,000 |
| Output Btu/hr. (max.) |
4,200 |
6,400 |
10,690 |
| Input Btu/hr. (min.) |
2,312 |
3,800 |
6,000 |
| Output Btu/hr. (min.) |
1,734 |
2,890 |
4,286 |
| Manifold Gas Pressure (NAT) |
3.5" W.C. |
3.5" W.C. |
3.5" W.C. |
| Min. Gas Pressure (NAT) |
7.0" W.C. |
7.0" W.C. |
7.0" W.C. |
| Max. Gas Pressure (NAT) |
10.5" W.C. |
10.5" W.C. |
10.5" W.C. |
| Manifold Gas Pressure (LP) |
10.5" W.C. |
10.5" W.C. |
10.5" W.C. |
| Min. Gas Pressure (LP) |
11.0" W.C. |
11.0" W.C. |
11.0" W.C. |
| Max. Gas Pressure (LP) |
13.0" W.C. |
13.0" W.C. |
13.0" W.C. |
| Net Weight |
26 lbs. |
34 lbs. |
46 lbs. |
| Dimensions |
24 3/8" x 15 3/8" x 6 5/8" |
24 3/8" x 21 1/8" x 6 5/8" |
24 3/8" x 27 1/8" x 6 5/8" |
| Direct Vent Flue Size |
3 9/16" |
3 9/16" |
4 3/4" |
| Maximum Wall Thickness |
*20" (12" vent kit comes with unit) |
*20" (12" vent kit comes with unit) |
*20" (12" vent kit comes with unit) |
| Minimum Wall Thickness |
6" |
6" |
6" |
* 12" length vent kit comes with each unit. A 20" inch vent kit is available but will need to be special ordered.
Interior Minimum Clearances: Diagram of interior clearances
Exterior Minimum Clearances: Diagram of exterior clearances
INSTALLATION TIPS Mount unit to a secure wall. Observe that the included vent kit has both an inner and outer pipe. The 1-3/4" difference in their lengths is required for them to properly seal to the back of the unit, so when cutting be sure to remove the same amount from the inner pipe as you do from the outer pipe.

Side view of Ecotherm heater installed