Frequently Asked Questions

• What is the difference between Straight Cool with Electric Heat Strip and a Heat Pump package unit?

  Straight Cool provides cooling and uses electric heat strips for heat. A Heat Pump both cools and heats by reversing the refrigeration cycle, with strips as supplemental heat in colder weather.

• Which refrigerant (R-32, R-410A, or R-454B) should I choose for a new mobile home package unit?

  R-410A is widely supported. R-32 and R-454B are lower-GWP A2L refrigerants that can improve efficiency. Your installer should confirm local code compliance and handling requirements for A2L refrigerants.

• How do I size a packaged rooftop/mobile home unit (2-5 tons) for my home?

  Use a Manual J load calculation. As a rough guide, many homes fall near 400-600 sq ft per ton, but insulation, windows, and climate vary. Gas heat sizes like 90k or 110k BTU are selected from heat-loss results.

• Are gas heat package units (81% AFUE) suitable for my climate compared to heat pump options?

  In colder climates, gas offers strong, consistent heat. In milder regions, a higher-SEER2 heat pump can lower electric costs. Dual fuel combines heat pump efficiency with gas for very cold snaps.

• Can these horizontal or downflow/horizontal units replace my existing package system without duct changes?

  Often yes. Match airflow orientation (Downflow/Horizontal or Horizontal) and verify curb/pad size, duct transitions, electrical, condensate, and gas connections. Minor adapters may be needed.

• Do package units in this category require professional installation for mobile homes?

  Yes. Manufactured home installations must follow listing, anchoring, duct, and clearance requirements. Professional installation protects warranties and ensures permits and inspections are met.

• What SEER2 efficiencies (13.4-18) are available and how do they impact operating costs?

  Options include 13.4, 14, 15.2, and 18 SEER2. Higher SEER2 generally reduces energy use and utility bills, with best savings in warmer climates or high electric-rate areas.

• What are the pros and cons of dual fuel (heat pump & gas) packaged systems for manufactured homes?

  Pros: excellent comfort, efficiency in mild weather, and strong gas heat in cold. Cons: higher initial cost and more complex controls. Ideal for variable-climate regions.

• Are these units suitable for rooftop or ground-slab installations?

  Yes. They’re designed for rooftop or slab mounting. Ensure a level curb or pad, proper drainage, and secure anchoring per manufacturer and local codes.

• Which brands offer the best value in this category?

  Goodman, EcoTemp, and DiamondAir deliver dependable performance and budget-friendly pricing, with broad parts availability and straightforward service.