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Description
Description
The Oil Miser 128HH is the new and improved model from the Oil Miser 180. The Compact low-mass water heater with 87% AFUE efficiency saves customers as much or more than the leading cast iron boilers, at half the size! The 128HH provides continuous hot water and compact size for easy installation.
New Features:
- Improved Performance
- Easier Maintenance
- New Safety Features
The Toyotomi/Oil Miser water heaters are on-demand, which means there is no costly storage of hot water until it is needed. Like all Toyotomi products they are safe, reliable, and easy to install. You'll love the convenience, and you'll love your new lifestyle.
Required Accessories:
Requires the addition of one of (A) required accessories to complete the unit
A:
- 20476430 Chimney Vent Installation Kit
- 20476440 Direct Vent Installation Kit
Features
Features
Continuous hot water
Compact size and weight allows for one person installation
OM-128HH has 1/2 inch drain and 3/4 inch pressure valve connections on the left side and 1 1/4 inch connections for supply and return on the right side
Choice of direct vent or chimney vent
Cold start capability
Very quiet and reliable operation
Heat exchanger has easy access for servicing from the top without having to disconnect any water pipes
New temperature fuse that attaches to the heat exchanger, to cause shut down in case the top of the heat exchanger gets too hot
New timing sequence for the photo eye.
Stainless steel heat exchanger and cabinet
Adjustable temperature differential for cycling control
Limited 10 YEAR WARRANTY
Specifications
Specifications
| Model |
OM-128HH |
| Type | combustion type – oil pressure vapor flue pipe – forced flue/chimney vent heating system – on-demand purpose – hydronic heating(1) |
| Ignition | high voltage discharge spark |
| Fuel Type: | ASTM D3699 K1 keroseneEROSENE ASTM D396 no.1 low sulfur fuel oil ASTM D975 ultra low sulfur heating oil/ diesel ASTM D396 no.2 fuel oil (home heating oil) |
| Efficiency | 87.1% |
| Hot Water Input | 148,000 btu/h |
| Hot Water Output | 128,900 btu/h |
| Fuel Consumption | 1.05 gal./h |
| Max. Hot Water Temperature | 176°F (approximately) |
| Water Flow Rate/ Temperature Rise: |
6.2 gal./min. (40°F rise) 4.1 gal./min. (60°F rise) 3.1 gal./min. (80°F rise) |
| Capacity of Heat Exchanger | 5.10 gal. |
| Fuel System | external tank(2) gravity fed |
| Dimensions (W x H x D) | 12-5/8" x 27-3/4" x 22-1/2" |
| Weight | 77 lbs. empty |
| Vent Pipe Hole | 4-3/4" diameter |
| Max. Length of Vent Pipe | 10 ft., 3 bends or less |
| Electric Rating | 120 volts AC, 60 Hz ignition - 120W burning - 98W |
| Required Accessories | fuel filter, flue pipe installation kit (Part #20476440) or chimney installation adapter kit (part#20476430 - 5 inch kit or #20476415 - 4 inch kit) |
| Safety Device | over-heat protector,ignition safety device, heat exchanger bi-metal switch, dual-temperature fuse, fusible link valve |
| Exhaust Air Temperature | less than 500°F |
| Nozzle | quantity of vapor - 0.85 GPH spraying angle - 60° spray pattern: delavan type XA |
| Temperature Fuse | 282° F |
| Electric Current Fuse | 5A, 7A (for external circulation pump or accessory) |
(1) Check state andlocal codes/ordinances for permitted use. Can also supply domestic hot water provided it is used with indirect storage tank.
(2) External tank to be purchased from local suppliers.
Literature
Literature
Support
Support
Manuals: Operation and Installation
Owner's Manual Oil Miser 128HH Installation
Owner's Manual Oil Miser 128HH Operation
Owner's Manual Water Heater Extension Flue Pipe
Support Videos
Trouble Shooting and Maintenance
Fuel Oil Line Parts List, Tank to Unit
Oil Miser 148, 180 and Toyotomi BS36UFF: How to Clean the Heat Exchanger
Oil Miser 148, 180 and Toyotomi BS36UFF: Routine Burner Service
Oil Miser: Plugged Heat Exchanger
Setting Fuel Pump Pressure BS36UFF, OM-148, OM-180
Warning Lamp 25 Second : BS-36UFF, Oil Miser 148 & 180