Rinnai America Corp.
Offers continuous-flow, tankless water heaters. Also offers ductless heaters as well as fireplaces and cooking appliances.
http://rinnai.us/

Preheat Engineering Ltd
Manufactures Peregrine heaters and associated products. Oil sump and gear box heaters, coolant heaters, tank heaters in general and diesel fuel tank heaters .
http://www.preheat.co.uk

Aero Environmental Limited
Canada's manufacturer of oil-fired heating solutions, oil burners, water heaters, indirect water heaters, air handlers, combination domestic hot water and space heaters, pool heaters, and storage tanks.
http://www.aeroenvironmental.com/

Ruffneck Heaters
CCI Thermal Technologies' Ruffneck product line offers the industry standard in heavy duty heaters for harsh industrial environments, such as outdoor extreme weather environments. Ruffneck features a wide selection of explosion-proof heaters, heating systems and heating accessories, such as unit heaters, forced air heaters, electric heaters, heat exchangers, wash down unit heaters and more.
http://www.ruffneck.com/

Beacon Morris
Beacon/Morris, manufacturer of Twin-Flo Kickspace Heaters, Floor Vectors, Convectors, Gas, Oil, Steam and Hot Water Unit Heaters for commerical and residential applications.
http://www.beacon-morris.com/

Tempco Electric Heater Corporation
Manufacturer of heating elements and thermocouples . Products include cartridge heaters, band heaters, and cast-in heaters.
http://www.tempco.com

ThermoPlus Industries
Propane heaters and torches that are portable is our specialty.
http://tpii.net

Infinity Fluids Corporation
Design, manufacture of industrial heaters and temperature controls. Products include water, mica and ceramic heaters, cast and cartridge heaters.
http://www.infinityfluids.com/

F.J. Evans Engineering Company
F.J. EVANS ENGINEERING COMPANY, INC. - BIRMINGHAM, AL
http://www.fjevans.com/

Muis Controls Ltd. - Flow Meters & Flow Controls
We sell ultrasonic and turbine flow meters used for measuring thermal mass, air, gas water and other liquids.
http://www.muiscontrols.com