report

[Nobody]

Thank you for your inquiry regarding the efficiencies of products manufactured 
and supplied by Radiant Electric Heat, Inc. Our customers have told us time and 
again that their satisfaction with Radiant Electric Heat ceramic heaters has 
surpassed all expectations they held prior to living with their electric 
radiant heat installation. Some customers purchase our product for the 
flexibility and ease of installation, which is particularly appealing in home 
remodeling or addition projects, but end up delighted by the quality of service 
delivered in use. The cleanliness and comfort of radiant heat cannot be matched 
by other heating methods, and the additional safety of zero carbon-monoxide gas 
potential due to the lack of combustion for heat production is a benefit of 
electric radiant heat often overlooked in the decision making process, although 
it should be a concern of every user of a home heating product.

After you have considered this information, we welcome your questions and 
comments and will be pleased to provide you with more detailed information 
should you require it. Our contact information is at the end of this document.

Thanks for your interest in the advantages offered by
Radiant Electric Heat, Inc.


About these reports.

The first report is offered in reference to ÒGlassheatÓ heating systems. It is 
important to understand that at the time of this report the products now 
manufactured by Radiant Electric Heat, Inc. were manufactured and sold under 
the Glassheat trade name. The products considered in the report are the 
identical product supplied by REH, so comments in reference to Glassheat are 
fully applicable to the REH product in every way.

The second report is in regard to the Enerjoy ceiling tiles for use in 
acoustical panel suspended grid installations, typical of an office 
environment. These products are distributed though REH for the convenience of 
our customers.

Regardless of which product form you are considering, there is value in reading 
both reports to learn more about the advantages of electric radiant heat in use.

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The Glassheat Report
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A Comparison of Glassheat Heating and Electric Baseboard Heating
January 1978

Prepared by:
Dr. Donald L. Gochenour
Associate Professor of Industrial Engineering
West Virginia University

The study was designed to compare a Glassheat heating system with a comparable 
electric baseboard heating system. Under control conditions (as documented in 
the report) the Glassheat heating system was found to be much more energy 
efficient than the electric baseboard heating system. In addition, the 
Glassheat system provided more uniform heat distribution throughout the study 
areas than did the electric baseboard system.

A summary of results from the observations obtained during the study is 
provided below:

1. Glassheat heating reduced the average heating cycle time from 54% to 68% 
when compared to electric baseboard heating.

2. Glassheat reduced the watts used per day from 11% to 61% when compared to 
electric baseboard heat.

3. In general, the smaller the room area the more energy efficient the 
Glassheat heating system when compared to electric baseboard heat.

4. With Glassheat heating the heat distribution was about 31% better (more 
uniform) than with electric baseboard heat.

5. There was less extreme variation in room temperatures from ceiling to floor 
with Glassheat than with electric baseboard heat.

Submitted by:

Donald L. Gochenour, Jr., Ph.D.

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The Enerjoy Report
--------------------
Enerjoy Case Study

An Evaluation of Thermal Comfort and
Energy Consumption for the Enerjoy Radiant Heating System

Radiant heating systems such as the ceiling surface-mounted Enerjoy system can 
offer the potential for significant energy savings by warming objects and 
occupants and only indirectly heating the air. With fast-acting, radiant panels 
and thermostat control in each room, heat is supplied to the home in a manner 
similar to lighting.

A review of the radiant heating literature revealed little relevant, empirical 
evidence for energy savings and thermal comfort associated with ceiling, 
surface-mounted, radiant heating systems such as the Enerjoy system. Testing 
the energy and thermal comfort performance in an occupied home could serve to 
expand the base of information on which discussions of various heating 
strategies are based.

To this end, an Enerjoy radiant heating system, an air-to-air heat pump system, 
and a monitoring data acquisition system were installed in an occupied research 
home. Information on thermal comfort and energy consumption for alternating 
operation of the two heating systems was collected for approximately one-half 
of a heating season. Also, data on energy consumption from a zoned electric 
baseboard heating system previously installed in the same house was available 
for comparison.

In this study, for the same operating and outdoor conditions, the installed 
capacity of the Enerjoy system was 2.5 times less than the electric baseboard 
and two times less than the that of the heat pump system. Generally comparable 
levels of thermal comfort were provided by the radiant and heat pump systems. 
And the capacity of the installed Enerjoy system was sufficient to meet outdoor 
design conditions. As a result, the significantly reduced installed capacity of 
the Enerjoy radiant system should be of particular interest to utilities whose 
capacities are stressed or whose territories are experiencing rapid growth and 
development.

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Energy consumption savings of 33 percent were estimated for a typical record 
year in the Washington DC area for the Enerjoy radiant system in comparison to 
the air-to-air heat pump system and an estimated 52 percent savings in 
comparison to the electric baseboard system.
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The energy consumption data indicated that the Enerjoy radiant heating system 
would out perform both the heat pump and the electric baseboard systems 
regardless of climate. Because a portion of the energy savings with the Enerjoy 
system was related to room by room setback and the specific number and routines 
of the research home occupants, savings for other households may be different 
than those obtained in this study. The magnitude of the savings obtained from 
the working couple occupying the research home suggests that energy savings 
would be obtainable in a great portion of U.S. households.

The occupants of the test home preferred the radiant heating system to the 
forced-air system. They cited greater flexibility and lack of sinus irritation 
with the radiant system.

The energy savings demonstrated in this study indicate that fast-acting radiant 
systems such as the Enerjoy system have a role to play in increasing the energy 
efficiency of U.S. housing. It is our hope and belief that the results of this 
study will broaden the understanding of the home heating options available to 
the U.S. homeowners.

This study was conducted by the NAHB Research Center, Inc. jointly for the U.S. 
Department of Energy (DOE) and SSHC, Inc., Solid State Heating Division of Old 
Saybrook, Connecticut.

Project No. 4159     May 31, 1994

NAHB Research Center
400 Prince George's Boulevard
Upper Marlboro, MD 20774-8731
<http://www.nahbrc.org/>

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These are report synopses. A full copy of either report is available from:

Radiant Electric Heat
3695 North 126th Street - Unit N
Brookfield, WI 53005

<http://www.electricheat.com/>
<mailto:address@hidden>

1-800-774-4450
262-783-1282
262-783-1284 (FAX)