II. Installation, Make-Up Air, Chimney

All installations and services must be performed by qualified service personnel.

If the "entire" building is unusually tightly constructed and/or has an exhaust fan installed, a low pressure zone could be created within the structure. Air for combustion and draft control operation must be supplied from the outdoors or from spaces freely communicating with the outdoors. Under these conditions, a permanent opening or openings having total free area of not less than 1 square inch per 5,000 BTUH of the total input rating of all the appliances located in the same proximity of the furnace should be provided. These openings must remain free and unobstructed.

Example: 100,000 BTUH input furnace plus a 40,000 BTUH input water heater require an opening or openings totaling 28 square inches of free area.

MAKE-UP AIR:

Today's emphasis on home insulation increases the probability of inadequate air supply to the furnace. Heavy insulation cuts off infiltration of outside air, which previously replaced inside air removed by bathroom, kitchen and laundry vent fans, and air escaping up chimneys. This causes a negative pressure differential within the home that reduces the supply of air available to the furnace for combustion and ventilation.

The Thermo Pride Make-Up-Air Control, installs quickly and easily on any warm air heating system, delivers controlled, fresh air automatically during the winter and a constant supply of clean, fresh air for comfortable summer living. It resolves the negative pressure differential problem.

II. INSTALLATION

A. CHIMNEY:

The furnace must be connected to an adequate chimney or an approved vent in accordance with these instructions. An adequate chimney is one that is sealed and lined with the capability of producing a (-).04" WC flue draft and having the capacity to handle the amount of stack gases that are introduced into it. A chimney with an internal construction of corrosion resistant tile, stainless steel, or some other material that will withstand flue gas temperatures up to 900°F is required.

Qualified service personnel must perform all installations and services.

The following are common chimney requirements necessary for the furnace to operate correctly:

A masonry chimney serving a Thermo Pride oil fired furnace must comply with local codes and NFPA Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances (NFPA211-1996 or latest edition).

1. PROPER CHIMNEY SIZE:

The inside area of the chimney liner should equal, at minimum, the area of the vent pipe exiting the furnace-

EXAMPLE: F x r2 = Area of Pipe (sq. in.)

r= radius of pipe F = 3.1417

Flue Pipe Diameter = 6" [Radius of pipe = ½ diameter of pipe = ½ (6 in.) = 3in.] F x 32 = 28 sq. in.

NOTE: This formula calculates the minimum inside area of the chimney. If more than one appliance vent connector pipe is connected to the chimney, the minimum inside area of the chimney should be equal to the area of the largest vent pipe plus one half the area of any additional vent pipes. If the chimney is too large or condensation has been a problem in the past refer to the NFPA Standard for the Installation of Oil Burning Equipment (NFPA31-1997 or latest edition) Appendix E for proper liner sizing.

MO-425 specifications

The Thermo Products MO-425 is an advanced heating solution designed for both residential and commercial applications. Known for its efficiency and innovative features, the MO-425 stands out in the market for those seeking reliable performance in temperature control.

One of the key characteristics of the MO-425 is its energy efficiency. It utilizes cutting-edge technology that minimizes energy consumption while optimizing heating output. The unit is equipped with a high-efficiency motor that reduces electricity usage, making it an eco-friendly choice for consumers concerned about energy costs and environmental impact.

The MO-425 also boasts a robust construction designed for durability. Made from high-quality materials, the unit is built to withstand the rigors of frequent use while maintaining its performance over time. This reliability is complemented by an advanced heating element that provides consistent warmth, ensuring that users enjoy a comfortable environment regardless of weather conditions.

In terms of controls, the Thermo Products MO-425 features a user-friendly interface, allowing for easy adjustments to temperature settings. The digital thermostat enables precise temperature control, which not only enhances comfort but also contributes to energy savings. Additionally, the unit has programmable features, allowing users to set heating schedules according to their routines, further promoting efficiency.

Another notable feature of the MO-425 is its quiet operation. The design includes sound-dampening technology that reduces noise levels during operation, making it suitable for use in living spaces, offices, and other environments where peace and quiet are essential.

The MO-425 is also versatile, offering multiple installation options to accommodate various spaces. It can be mounted on walls or used as a portable unit, making it adaptable to different room layouts and heating needs. This flexibility ensures that users can find the ideal setup for maximizing warmth and comfort in their environments.

Additionally, the Thermo Products MO-425 is backed by excellent customer support. Users can rely on a robust warranty and access to assistance for any inquiries, ensuring a positive ownership experience.

Overall, the Thermo Products MO-425 is a top-tier heating solution that combines efficiency, durability, and user-friendly features. Whether for residential or commercial use, it addresses the critical needs of modern heat management, making it a valuable addition to any home or workspace.