Air to Air Heat Exchangers

Air is free.

But when freezing or sweltering, it is expensive to heat or cool. Many exisitng buildings lack the ablitity to heat and cool enough air to improve indoor air quality to acceptable modern standards.

The BPE X-Type high efficiency air to air energy recovery device is 87% plus thermally efficient with no cross contamination and can be installed in existing building were needed without expensive existing HVAC modifications. A typical 10 person office suite can be ventilated with a BPE X-Type with no tie-in to existing heating or cooling systems and provide fresh air within a few degrees of room temperature without the need for additional mechanical heating or cooling.

Our products make the air virtually free again no matter what the temperature and improve indoor air quality while helping the environment! With limited or no modification to existing buildings heating and air conditioning systems.

By using our new patented technologies, BPE is able to precondition fresh outdoor air to room temperature for your building, school, office, or home, substantially reduce your energy bill, and improve indoor air quality, all with reliable equipment that needs no maintenance typically for 15 years.Why Use Air to Air Heat Exchangers?

A typical commercial building uses one third of its heating/cooling dollars to condition outside air. An Air to Air Heat Exchanger running at 95% efficiency can be used to pre-condition that outside air, resulting in significant dollars saved. For example, in a 100,000 square foot building savings could be as high as $30,000 per year for the life of the building.

Moreover, compliance with ASHRAE Standard 62 demands higher indoor air turnover rates, thus making the need for heat recovery even greater!

Click HERE for a Slide Show description of our Products.

BPE provides Wheel, Fixed Plate Energy and Enthalpy Recovery systems.
  • Moving or Wheel Energy or Enthalpy Recovery Wheel Systems use a corrugated material shaped like a wheel turning at 15 to 20 rpm to recover 50 to 80% of thermal energy. These wheels can also be made of a desiccant material that helps to transfer moisture along with temperature.

    Wheels should never be used in areas with any issues of cross contamination or where there are indoor air quality issues. We provide wheel energy and enthalpy products on a custom or case by case basis. Wheel type products are more maintenance prone than fixed plate systems, but offer superior moisture transfer or enthalpy transfer. Cross contamination can be as low as 2% of air stream.


  • Polymer Fixed Plate Energy Recovery The standard polymer energy recovery module is engineered with a non corroding, sanitary, monolithic heat exchanger. The standard polymer energy recovery module has a 5 year limited warranty against defects in manufacture. The standard heat exchanger typically will not let contaminants or water transfer or permit any cross contamination. In extreme applications, the standard heat exchanger can be hosed down for cleaning if needed. Typically no cleaning or maintenance is needed by a standard heat exchanger for the entire life of the system. This means 15 to 20 years in service with no time or money spent to maintain the unit.


  • Desiccant Fixed Plate Enthalpy and Energy Recovery The standard desiccant enthalpy module is engineered to provide moisture and temperature transfer without any moving parts. These standard desiccant enthalpy modules are not engineered to handle extreme moisture conditions, but when used in partially conditioned air streams can provide effective secondary energy and enthalpy transfer. Typically, an engineered system would use a primary standard polymer energy recovery module to reduce temperature and moisture in series with a standard desiccant enthalpy module. The standard desiccant enthalpy module can provide up to 50% moisture transfer and additional thermal energy transfer.

    It should be understood that any enthalpy recovery system has the potential for cross contamination. Fixed plate enthalpy recovery systems have far less potential than wheel or moving enthalpy recovery system.