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Residential Dehumidification Systems Research for Hot-Humid Climates

Reference

Research study identifying the best performing, most energy-efficient and cost- effective techniques to provide controlled mechanical ventilation and humidity control in hot- humid climates with thermally efficient building envelopes.

Advanced HVAC Humidity Control for Hot-Humid Climates

Reference

The research report outlines a practical and cost-effective strategy utilizing central HVAC systems to optimize humidity control and ventilation in energy-efficient homes located in hot-humid climates, demonstrating significant improvements without requiring complex equipment upgrades.

BSC Information - Supplemental Humidity Control for Hot-Humid Climates, Sheet 620

Reference

Information sheet offering general recommendations on supplemental humidity control and outlines viable system configurations.

Technology Solutions Case Study: Improving Comfort in Hot-Humid Climates with a Whole-House Dehumidifier

Case Study

Case study describing how to decrease indoor moisture using an air conditioning unit with a dehumidifier in hot-humid climates.

Building America Top Innovations 2012: Moisture and Ventilation Solutions in Hot, Humid Climates: Florida Manufactured Housing

Case Study

Case study describing a 2012 DOE Building America Top Innovation on ventilation strategies in hot and humid climates developed and assessed by the Florida Solar Energy Center.

Example standalone dehumidifier option in a 1-story home closet

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Heat Recovery Ventilator (HRV)

Video

Video describing the Cold Climate Housing Research Center heat recovery ventilator system.

A supplemental dehumidifier can be integrated with the central air handler

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An independent ducted dehumidifier draws air from and supplies air to the living space using its own ducts, not ducts that are connected to the HVAC system

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The dehumidifier draws air from a common area in the house, dehumidifies it, and adds it to the supply side of the central air handler for mixing and distribution

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The dehumidifier draws air from a common area in the house, dehumidifies it, and adds it to the return side of the air handler for conditioning, mixing, and distribution

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Encapsulated Ducts

Guide

Guide that illustrates how and when to encapsulate ductwork in unconditioned attics, increasing the R-value of duct insulation, mitigating condensation issues, and reducing air leakage.

Effect of Occupant Behavior and Air Conditioner Controls on Humidity in Typical and Low-Load Homes

Presentation

Webinar describing the effect of occupant behavior and air conditioner controls on humidity in typical and low-load homes.

Whole-House Dehumidification

Guide

Guide describing options for adding dehumidification equipment to a home to maintain indoor relative humidity below 60%.

A supplemental dehumidifier is integrated with the home’s HVAC air handler to provide extra dehumidification when needed

Image

The dehumidifier draws air from both a common area in the house and from outside, dehumidifies it, and adds it to the supply side of the air handler for distribution

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Residential Dehumidification Systems Research for Hot-Humid Climates

Advanced HVAC Humidity Control for Hot-Humid Climates

BSC Information - Supplemental Humidity Control for Hot-Humid Climates, Sheet 620

Technology Solutions Case Study: Improving Comfort in Hot-Humid Climates with a Whole-House Dehumidifier

Building America Top Innovations 2012: Moisture and Ventilation Solutions in Hot, Humid Climates: Florida Manufactured Housing

Example standalone dehumidifier option in a 1-story home closet

Heat Recovery Ventilator (HRV)

A supplemental dehumidifier can be integrated with the central air handler

An independent ducted dehumidifier draws air from and supplies air to the living space using its own ducts, not ducts that are connected to the HVAC system

The dehumidifier draws air from a common area in the house, dehumidifies it, and adds it to the supply side of the central air handler for mixing and distribution

The dehumidifier draws air from a common area in the house, dehumidifies it, and adds it to the return side of the air handler for conditioning, mixing, and distribution

Encapsulated Ducts

Effect of Occupant Behavior and Air Conditioner Controls on Humidity in Typical and Low-Load Homes

Whole-House Dehumidification

A supplemental dehumidifier is integrated with the home’s HVAC air handler to provide extra dehumidification when needed

The dehumidifier draws air from both a common area in the house and from outside, dehumidifies it, and adds it to the supply side of the air handler for distribution

Ducts Buried in Attic Insulation and Encapsulated

Building America Webinar: High Performance Space Conditioning Systems, Part I

ACCA Manual RS - Comfort, Air Quality, and Efficiency by Design

Pre-Retrofit Assessment of Ventilation Systems