Santa Fe Ultra70 Whole House Dehumidifier - ul3684

Santa Fe Ultra70 Whole House Dehumidifier - ul3684

Maintain healthy humidity throughout your home and feel more comfortable indoors with the Santa Fe Ultra70 Ventilating Dehumidifier (4044100). This whole-house dehumidifier integrates into your home's existing HVAC system and ductwork to control humidity. It also provides whole-house ventilation with optional fresh air intake for improved indoor air quality year-round.

Features 

• Impressive Moisture Removal: Removes 70 pints of moisture daily in homes up to 1,800 square feet.
• Ducted Design: Integrates into your home's existing HVAC system and ductwork to control humidity.
• Vertical or Horizontal Install: The innovative cabinet design easily converts to vertical or horizontal airflow discharge, making installation easier in tight spaces.
• R-454B Refrigerant: The Ultra70 now uses R-454B refrigerant, which is more energy-efficient and environmentally safe than previous formulations. 

What our Experts Think

• Reliable Whole-Home Performance (70 Pints/Day)
  Delivers consistent moisture removal for spaces up to ~1,800 sq. ft., making it ideal for condos, basements, and smaller homes needing full coverage.
• Compact Design = Big Advantage in Tight Spaces
  One of the most space-efficient units in its class (only ~12" height), perfect for crawl spaces, closets, or low-clearance installs where larger systems won’t fit.
• Energy-Efficient Operation
  Exceeds DOE efficiency standards while using relatively low power (~4.1 amps), helping reduce long-term energy costs without sacrificing output.
• True Whole-House Integration (HVAC + Ducting)
  Can be installed standalone or fully ducted into HVAC systems, giving flexibility for both retrofit and new construction setups.
• Air Quality Boost with MERV-13 Filtration
  Built-in MERV-13 filter captures dust, allergens, and particles, improving indoor air quality alongside humidity control.
• Flexible Airflow & Installation Options
  Convertible airflow (horizontal or vertical) allows custom installation configurations, especially useful in complex layouts or duct-restricted spaces.
• Smart Controls + Auto Features
  Includes onboard controls, humidistat, auto-restart, and auto defrost, ensuring consistent performance with minimal user intervention.
• Durable, Contractor-Grade Build
  Features corrosion-resistant coils and a 5–6 year warranty, built for long-term reliability in demanding environments.

Q&A

Maintenance Tips

• efficiency.
• Keep ducts and vents clear – Maintain at least 12 inches clearance and avoid blocked intake/supply for optimal airflow.
• Inspect drain line regularly – Check for clogs, kinks, or leaks to prevent water backup and system shutdown.
• Clean coils and intake area – Remove dust buildup to maintain efficiency and prevent overheating.
• Check humidity settings (humidistat) – Ensure correct calibration for consistent indoor humidity control.
• Verify proper installation position – Keep unit level and supported to avoid vibration and drainage issues.
• Monitor operating conditions – Use within recommended range (~49°F–95°F) for best performance.
• Schedule annual professional service – Inspect internal components, refrigerant system, and controls for long-term reliability.