Trane provides energy efficient commercial air conditioners, chiller systems, hvac controls, hvac parts and supplies, and building automation systems that contribute to sustainable building design. Trane partners with building owners, engineers and contractors with services for hvac system design, hvac service, temporary cooling, chiller upgrades, performance contracting, advanced building controls and financing solutions.

United Metal Products offers Cel-Air units that are the premier line of environmentally friendly, energy efficient evaporative cooling equipment. These high capacity units come in over 120 cataloged formations and range in size from 6,000 CFM to over 100,000 CFM.

WoodMaster manufactures outdoor wood furnaces that provide efficient, renewable, alternative heat.

Yellow's Green provides biomass fuel heating equipment and installation support for New England as an environmentally friendly alternative to the current reliance on fossil fuels. A dealer for several companies that manufacture corn furnaces, boilers, stoves and fireplace inserts.

Camfil Farr makes MERV 8 filters, used in HVAC contracting, and air filtering in cleanrooms, industrial applications, hospitals, schools, and more.

Berner Energy Recovery makes HVAC systems which can help your building achieve a LEED certification. Some of their products include energy recovery ventilators, tricoil systems, and single fan and rotor systems.

Clearline makes the C-Port rooftop support systems of recycled rubber and is for use in application for pipe supports, HVAC supports, roof walkway supports, duct suports, air conditioning supports, and conduit supports.

Cambridge Engineering's S-Series Blow Thru Space Heaters are industrial or commercial building heaters that are 40 to 70% more energy efficient than other types of indirect and direct gas-fired systems, and specs include 200 to 3,400 MBH, and up to 14,400CFM, running on natural gas, LP gas, or propane.

AMWEI Thermistor design and manufacture PTC & NTC thermistors (THERMally sensitive resistors) and thermistor temperature sensors probe for HVAC temperature mesurement sensing indicating and control, as well as overload over-current protection for HVAC equipment. PTC (Positive Temperature Coefficient) thermistor application covers over-current & overload protection, telecom, lighting switching, motor starting, temperature sensing & protection, self-regulation heating, linear PTC thermistor, silicon temperature sensor. NTC (Negative Temperature Coefficient) thermistor application covers power thermistor for inrush current suppressing limiting, NTC thermistor for temperature measurement, indicator, temperature compensation, temperature control, in either radial leaded, axial leaded or surface mount configuration. Can also make custom thermistors assemblies and temperature probes, housed in either stainless steel, copper, plastic, teflon, aluminum, epoxy and heat shrinkable tubing, such as air/gas temperature sensors, surface temperature sensors and immersion temperature sensors, etc.

At Holtkamp Heating & Air, we take that comfort very seriously. Unparalleled service and superior products are the foundation of our business. So whether it's an untimely breakdown or a need for a greener indoor environment, you can trust Holtkamp Heating & Air for Lifetime Comfort

Mitchell Mechanical has been serving the heating and cooling needs of metro-Atlanta and North Georgia since 1992.  We pride ourselves on our knowledgeable staff and our customer first approach.  Our technicians receive the most up to date training available and we stay on the forefront of home comfort technology.  We can service any brand of equipment, but we recommend the Trane and Lennox line of products for superior efficiency and reliability.