Small Duct High Velocity Equipment

SpacePak makes it possible to install central heating and cooling in any home or small business; regardless of structure design, age, size or type of construction. SpacePak is an air distribution system which uses a principle known as aspiration - as the air stream enters the room, it creates a gentle mixing of air in the room to provide thorough, comfortable draft-free air circulation. SpacePak eliminates stratification with a minimum floor-to-ceiling temperature difference.

Below is a list of climate control products offered by SpacePak with a brief overview of capabilities and features. Also listed is any related literature. Click on the titles for more information (where available) or download the appropriate literature.

High Velocity Air Handlers

ESP-G Horizontal Air Handler Small Duct High Velocity
  • Multiple configurations for all types and size applications including R410A, heat pumps and hydronic coils.
  • Fully insulated and durable "E-Coat" finished cabinet for ultra quiet operation and superior longevity.
  • Low-profile horizontal or vertical design for application flexibility. Fits in tight spaces including attics, basements, closets, crawl-spaces and garages.

AirCell - Small Duct Hydronic Fan Coils

AirCell - Small Duct Hydronic Fan Coils

Through the use of high efficiency variable speed ECM motors and a unique low temperature hydronic coil design, AirCell distributes perfectly conditioned air to any occupied space. Whether heating, cooling or ventilation, AirCell does it all. Working in conjunction with any hydronic supply system including boilers, reverse cycle chillers, heat pumps, and geothermal, AirCell allows full control and distribution of conditioned air with ultra-low energy consumption while reducing harmful CFC's by up to 40-60% over conventional DX systems.


Solstice - Reverse Cycle Heat Pumps

Solstice Solstice Reverse Cycle Heat Pumps

Solstice heat pumps work similar to conventional heat pumps by circulating refrigerant, which vaporizes at a low temperature in its enclosed evaporator producing additional energy in the process. Further concentration of the conditioned warm vapor occurs in SpacePak's dual programmable compressor raising it to a temperature where it can be circulated through a matching SpacePak WCSP air handler for distribution to the occupied space.

  • Enhanced Vapor Injection Technology (EVI)
  • 48,000 BTU/h at 0°F at 140°F Heating Supply
  • 4 Ton at 95°F at 47°F Cooling Supply
  • Highest R-410A COP and EER
  • Green Hydronic Energy – No Refrigerant in Occupied Space
  • Low Ambient Freeze Protection
  • Manual J Load Calculation
  • More Information...

SpacePak Heating Products

ThermaPak® High Efficiency, Compact Gas-Burning Condensing Boiler

ThermaPak - 93% AFUE efficient condensing boiler
  • Ultra high efficient packaged boiler and domestic water heater combination unit.
  • 93% Certified operating efficiency with full 5:1 operating modulation insures optimal efficiency at all heating requirements.
  • Sizing versatility for all applications from ranging 30,000 – 160,000 BTUs.
  • Over 4 GPM of semi-instantaneous domestic hot water.
  • European space-saving wall-hung design.
  • Environmentally friendly - low emissions

Boiler Overview
Ratings & Engineering Data
Heating Capacity


Heating Options

SpacePak offers several heating options to fit any application. Whether used as primary heating or "shoulder" season heating to take off the chill when radiant systems are not the optimal alternative, SpacePak has the options to keep you comfortable.

WaterPak - Hydronic Coil for horizontal and vertical fan coil units
WaterPak hydronic coils
  • High Output 4 Row Coils
  • Custom-fit design for seamless installation on SpacePak air handlers
  • Perfect complement to ThermaPak boilers
ElectriPak integral electronic heat modules
  • ETL approved design
  • Fully modulating efficient operation
  • Custom-fit design for seamless installation on SpacePak air handlers
Electric Duct Heaters
  • UL approved design
  • Cost-effective supplementary heat source
  • Perfect complement to homes with radiant floor heating
  • Custom-fit design for seamless installation in SpacePak main supply duct-work

PurePak® Air Filtration Unit

PurePak Improved Indoor Air Quality (IAQ) Filtration System

The PurePak electrostatic air filtration system protects you and your family from airborne allergens, bacteria, molds, pollen, smoke, fine dust particles and VOCs at a fraction of the cost of other filtration systems on the market.

The key to cleaner, healthier air.

  • 97% capture efficiency of contaminants down to .3 microns
  • Safe, patented operation does not create ozone
  • Easy, low-cost maintenance
  • 5-year powerhead warranty

SmartSeal Leak Proof Supply Duct

Smart Seal

SmartSeal's unique seals are proven to be 100% leak resistant thus reducing energy costs by reducing duct-loss. The average ducted system can lose between 25-40% of the energy generated by the air handler resulting increased energy consumption. Not only does SmartSeal reduce energy consumption it ensures clean indoor air quality as well.

SmartSeal prevents leakage into or out from SpacePak mini ducts
  • 100% Leak Resistant (to 10" W.C.)
  • SmartSeal's slip-fit joint connections with patent-pending gasket system.
  • Recyclable Material
  • Made from up to 58% Recycled Materials
  • LEED points eligible

Decorative Outlet Covers

SpacePak offers an array of high quality decorative outlets to complement any décor from floors to ceilings to kitchen soffits.

Outlet Cover Selection
(mouse over to enlarge)

ZonePak® Zoning Damper System for SpacePak

ZonePak - damper system for dividing SpacePak into separate climate control zones

What is Zoning?
Why Zoning?
Heat Gain/Cooling Load Info
SpacePak Zoning Requirements
Damper Installation
ModuPass Damper
Zone Valve Interface Control
Zoning Case Study
Damper Warranty

Comfort Where You Want It… When You Want It

Traditional "air" distribution systems cannot be "zoned" effectively. ZonePak is the first highly effective cost effective method of "zoning" not only traditional air systems, but small duct high velocity systems like the SpacePak total comfort system.

ZonePak's unique damper system is guided by multiple independent, pre-programmed thermostats, creating up to three separate zones utilizing a single air handler allowing the the SpacePak systme to run even more efficiently; reducing overall energy consumption and costs.


Air Control Module (ACM)

SpacePak's Air Control Module (ACM) brings precision air volume control to small duct high velocity (SDHV) applications. The ACM enables the perfect matching of the SpacePak air distribution system with the widest range of energy efficient outdoor units. Precision air volume control allows for maximum energy savings and premium home-owner comfort.

ACM technology provides the means to accurately and efficiently control air flow volume for:

ACM - Air Control Module
  • Zoning
  • Air Circulation
  • Indoor Air Quality Filtration
  • Night Set-Back
  • Soft Start - Soft Stop
Standard (white) Cast Aluminum (white) Cast Aluminum (grey) Cast Aluminum (black) Brass Red Oak (unfinished) Surface Mounted Open Red Oak (unfinished) Flush Mounted Open Red Oak Flush Mounted Louvered Red Oak Surface Mounted Louvered Slotted Diffuser
close box