Intertherm 3.5 Ton AC And 80% AFUE Downflow Gas Furnace System with Coil Cabinet for Mobile Homes - Select Your Furnace, R454B

Reliable Gas Heating Designed Around the Manufactured-Home Footprint

Single-stage downflow comfort with configuration options for compatible central cooling systems.

The Intertherm MG1E Series Gas Furnace provides dependable single-stage heating for compatible manufactured and mobile homes. Its downflow, front-return design fits the specialized airflow arrangement commonly found in factory-built housing, where heated air is delivered into ductwork below the furnace.

MG1E models offer up to 80% AFUE and nominal input capacities from 56,000 to 90,000 BTU. Available configurations include models with or without an integrated coil cabinet, allowing the furnace to support qualifying replacement installations and compatible central air-conditioning systems.

• Up to 80% AFUE: Provides established gas-furnace performance for factory-built housing.
• Single-Stage Heating: Delivers a consistent level of heat when the thermostat calls.
• Downflow/Front-Return Design: Matches common manufactured-home duct and return-air layouts.
• Multiple Heating Capacities: Available in nominal input capacities from 56,000 to 90,000 BTU.
• Coil-Cabinet Options: Models are available with or without an integrated cabinet for compatible cooling coils.
• Natural Gas or Propane Capability: Conversion must follow the manufacturer’s instructions using approved components.
• Matched Cooling Options: Designed to work with approved Intertherm coils and outdoor equipment.

The Intertherm MG1E Series was formerly sold under the Revolv brand. Before purchasing, confirm the required heating capacity, fuel type, return-air arrangement, coil-cabinet configuration and approved cooling-system match.

Complete the Furnace Venting Path Through the Home’s Roof

Adjustable roof-jack options help provide the combustion-air and exhaust path required by compatible furnaces.

Intertherm Roof Jack Kits are designed for compatible MG1E and M5SB manufactured-home furnaces that require a roof-mounted venting assembly. The roof jack extends from the furnace through the ceiling and roof, allowing the system to draw combustion air and discharge flue gases outdoors.

Available in multiple adjustment ranges and configurations for flat or sloped roofs, these roof jacks allow a qualified installer to select the model that matches the home’s roof pitch and vertical distance. Their aluminum construction provides corrosion resistance for long-term outdoor exposure.

• Furnace-Specific Application: Designed for compatible Intertherm MG1E and M5SB furnaces.
• Multiple Length Ranges: Adjustable options accommodate different ceiling and roof dimensions.
• Flat and Sloped Roof Options: Models are available for several roof-pitch requirements.
• Combustion-Air and Exhaust Path: Supports the furnace’s required outdoor venting process.
• Aluminum Construction: Provides corrosion resistance for exterior installation.
• Matched Installation: Designed to connect with the applicable furnace and roof configuration.

These Intertherm roof-jack products were formerly marketed under the Revolv brand. Select the exact model according to the furnace, roof pitch and required adjustment range; the product image may be representative of the roof-jack family rather than the exact dimensions of every model.

Year-Round Indoor Heat Transfer for 3.5-Ton Heat Pump Systems

A heat-pump-specific indoor coil designed to support efficient cooling and heating.

The Intertherm C85DAMX43U-B is a 3.5-ton, 42,000 BTU uncased indoor coil designed specifically for compatible manufactured and modular home heat-pump systems. Unlike a cooling-only evaporator coil, this model supports refrigerant heat transfer during both summer cooling and heat-pump heating operation.

Intertherm continues the factory-built home HVAC legacy previously associated with the Revolv name. This vertical A-coil combines micro-channel construction with a factory-installed TXV to manage R454B refrigerant flow, helping an approved matched heat-pump system provide dependable year-round comfort.

• 3.5-ton nominal capacity: Supports approved heat-pump systems with approximately 42,000 BTUs of capacity.
• Heat-pump application: Designed to support both cooling and heating in compatible split heat-pump systems.
• R454B refrigerant design: Built for approved current-generation R454B equipment.
• Micro-channel coil: Provides effective heat transfer during cooling and heating operation.
• Factory-installed TXV: Precisely regulates refrigerant flow as system conditions change.
• Vertical uncased configuration: Installs within a compatible manufactured-home furnace or coil cabinet.
• Purpose-built equipment match: Designed for approved Intertherm heat pumps rather than cooling-only outdoor units.

The C85DAMX43U-B is the appropriate 3.5-ton coil when an approved Intertherm heat-pump match requires this model. It should not be substituted with the C85DAMX42U-B cooling-only coil solely because both have similar nominal capacity. Professional match verification and installation are required.