Enerco HST45 Air For Combustion Residential, Outside Combustion Air Supply, System Requirements

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Vertical Venting

Air For Combustion (Residential)

If indoor combustion air is to be supplied for a tightly enclosed area, one square inch of free area opening shall be provided below the heater for each 1,000 Btu/hr of heater input.

When outside air is used, the opening below the heater shall be one square inch of free area for each 4,000 Btu/hr of heater input. In contaminated atmospheres or high humidity areas, optional outside air for combustion is recommended.

Adequate clearances around the perforated fresh air plate must be maintained at all times. In larger open areas of buildings, infiltration normally is adequate to provide air for combustion.

Direct Outside Air For Combustion (Residential)

Outside combustion air should be supplied directly to the heater when the building is subject to negative pressure or contaminants are present in the building air. These contaminates include paints, solvents, corrosive vapors or any other foreign particles that may cause damage to the heater or result in poor combustion.

Outside combustion air can be brought directly to the heater by a 3 inch diameter duct less than 25 feet long or equivalent. This is attached to a 3 inch starting collar that is fitted on inlet side of the control cabinet. An approved vent cap must be placed directly to the end of the outside combustion air inlet pipe. The combustion air inlet should be a minimum of 3 feet, either vertically or horizontally, from the flue vent termination. The air intake terminal must be located not less than one foot above grade. It is good installation practice to supply combustion air from the same pressure zone as the vent outlet.

In colder climates, where necessary, insulate the fresh air duct. Avoid locating the fresh air duct directly above the control box. Provide a capped cleanout T as necessary.

Outside Combustion Air Supply

The MHT /HSTtube heater is approved for installation with an outside air supply system. Some compounds such as halogenated hydrocarbons or other corrosive chemicals in the air can be drawn into the equipment and cause an accelerated rate of corrosion of some of the heater components. The use of such chemical compounds near the enclosure should be avoided.

IMPORTANT: If the building has a slight negative pressure or contaminants are present in the air, an outside combustion air supply to the heaters is strongly recommended.

For an outside air supply a three (3") inch O.D. single wall pipe may be attached to the heater. The duct may be up to twenty five (25') feet maximum length or two (2') feet minimum length with no more than two (2) elbows.

VERTICAL THROUGH THE ROOF

Vent Cap

(Leslie VersaCap)

 

3" Dia.

3' Min.

Single-Wall Pipe

6" Min.

Flashing

 

3" Starting Collar

¼” per ft.

 

downwards

Intake Vent

The air supply duct may have to be insulated to prevent condensation on the outer surface. The outside air terminal should be securely fastened to the outside wall by drilling four (4) holes in the outside flange; wood screws or bolts and expansion sleeves may be used to fasten terminal.

Non-Pressurized Outside Air Supply Duct

Electrical Service Installation:

System Requirements

The MHT / HST tube heater requires a grounded three-prong electrical outlet to be installed within 18”of the rear surface of the heater’s burner box. It is recommended that the outlet for the heater be ceiling-mounted and should be on a dedicated circuit. DO NOT use an electrical extension cord to operate the heater.

In order to control the heater thermostatically, it is necessary that the grounded three-prong electrical outlet be controlled with a on/ off switch or a line voltage thermostat. Please consult with an electrician or follow all local electrical codes.

Heater Rating: 120 VAC, 60Hz, Single Phase, 1 Amp

Enerco Group, Inc., Gas-Fired Low-Intensity Infrar ed Heater

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Operating Instructions and Owner’s Manual

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Contents MR. Heater Contents Available Accessories Before YOU BeginUnpacking the Heater IntroductionAbout The Heater Rear ViewTechnical Specifications Heater SpecificationsVenting Specifications Side View End ViewWhere can the heater be installed? Where can’t the heater be installed?Installer’s responsibility Gas Service Requirements System RequirementsElectrical Service Requirements System Requirements Non-residential InstallationsGrounding Venting RequirementsInstallation Safety EquipmentInstallation Tools Installation MaterialsHorizontal Installations Tilted InstallationsGeneral Guidelines Residential Minimum Required Safe Distances from CombustiblesHorizontal Installation Tilted InstallationHang the Heater Heater OrientationMHT / HST Heater Assembly Instructions Canadian Installations1 US Installations2 Typical InstallationVenting Vertical Through the Roof Basic Flue Venting Residential Only10 ft Roof Pitch Venting/DuctingHorizontal Through the Sidewall Vertical Venting Single WallSingle wall vent run Single wall terminal end Double WallElectrical Service Installation Air For Combustion ResidentialOutside Combustion Air Supply Direct Outside Air For Combustion ResidentialInstall Gas Supply Lines Gas Service Installation120V-60Hz Supply Circuit Use LP-resistant joint compound on all threads OperationHeater Operation of the Heater Maintenance Pre-Season MaintenanceProper Operating Flame Troubleshooting Replace fuse or reset circuit breaker Replace blower motorBlower does not Come on Igniter does not SparkBurner does not Light Burner does not Stay LITIllustrated Parts Illustrated PartsMHT-45 HST-45 MHT /HST45 Tube Heater Operating Instructions

HST45 specifications

The Enerco HST45 is a high-efficiency heating solution that has gained popularity among consumers looking for effective solutions for their heating needs. This advanced heating system combines innovative technologies and user-friendly features to deliver optimal performance while ensuring energy savings.

One of the standout characteristics of the Enerco HST45 is its robust heating capacity. With the ability to deliver up to 45,000 BTUs, it is designed to effectively heat large spaces, making it an ideal choice for commercial applications and residential use. The unit operates on a propane or natural gas fuel system, providing flexibility in fuel choice based on user availability and preference.

The HST45 is equipped with a cutting-edge infrared heating technology. This system works by directly heating objects and surfaces in a room rather than just circulating warm air. This method results in faster and more efficient heating, reducing energy consumption and providing comfortable warmth even in large or poorly insulated spaces.

Another key feature of the Enerco HST45 is its portability. Designed with ease of movement in mind, it comes with sturdy wheels, allowing users to conveniently transport it to different locations as needed. This makes it a versatile option for construction sites, garages, workshops, and outdoor events.

Safety is also a primary consideration in the design of the HST45. The unit is equipped with an automatic shut-off feature that activates in the event of overheating, ensuring the safety of users and surroundings. Additionally, it includes a protective grill to prevent accidental contact with the heating elements, further enhancing user safety.

User-friendly controls contribute to the overall appeal of the Enerco HST45. The system features easy-to-read gauges and straightforward controls that enable users to adjust the temperature and settings according to their preferences without hassle.

Moreover, the HST45 is designed for durability and longevity, made from high-quality materials that can withstand various environmental conditions. Its sturdy construction helps ensure reliable performance through years of use, making it a worthwhile investment for anyone in need of a dependable heating solution.

In summary, the Enerco HST45 combines powerful heating capabilities, innovative infrared technology, portability, and user safety features, making it an exceptional choice for those seeking effective heating solutions. Its durability and efficiency further enhance its appeal, positioning it as a leader in portable heating systems. As energy efficiency and versatility become increasingly paramount, the Enerco HST45 stands out as a reliable and effective heating option for various applications.