Heat Pumps and Air Conditioning Systems.

We specialise in the Design, Installation, Maintenance and Service of Air Conditioning Heat Pump units, Mechanical Ventilation systems, Heat Recovery units, Hydronic Underfloor systems for both Commercial and Residential clients.

Welcome to Our HVAC Services

Residential solutions

Hartnell Coolheat brings the best value for money on home ventilation, heat recovery, air conditioning, heat pump and underfloor hydronic systems in the Canterbury region.

Commercial solutions

We offer design-built solutions for a wide range of commercial applications.

Maintenance & Service

We offer breakdown service and maintenance programs for HVAC systems

Our Projects

  • WYMA Solutions

    Wyma solutions new factory and offices with heat recovery ventilation to keep the energy bills to a minimum.

  • Lady Wigram Retirement Village

    A new state of the art retirement village with swimming pools, ducted ventilation to each room and individual heating control across the site.

  • Residential

    New ducted system installed above a kitchen and linear grille for air distribution.

  • We've recently completed installation of a large HVAC system for a home in ChCh

    The underfloor hydronic heating system along potable water heating was provided by a Mitsubishi Ecodan system comprising an outdoor unit coupled to a Hydrobox that reticulated heated water around the home

    Built in Daikin ducted units were used to provide cooling along with heating for use in the spring & autumn periods where running the underfloor system isn’t warranted

    Another interesting aspect of the underfloor design was heating to the Garage floor to limit water buildup when vehicles enter on a wet day

    Because this moisture can make the environment quite wet an extract fan controlled by a humidistat was also installed.

  • Heat Recovery Installation

    This month we installed a heat recovery system to a relatively new home suffering severe condensation Issues in bedroom areas. In this case the problem was further exacerbate by a skillion roof with membrane overlay. To overcome the condensation issue a Heatex system was chosen mainly because of its compactness given limited ceiling cavity was available.

    Heat recovery systems draw outside air into a heat exchanger within the unit while simultaneously drawing moist, stale air out of the rooms. This warm, moist air enters the heat exchanger where heat is transferred into incoming outside air before being exhausted to outside. This saves significant energy costs by recovering waste heat. Heat recovery systems are designed to operate 24/7 during the winter months flushing filtered air through rooms to keep condensation @ bay. In conjunction with a heat pump they work particularly well.

     These systems are not to be confused with DVS or HRV types that only draw outside air in with no heat recovery. Apart from the Heatex brand we also stock the Mitsubishi Lossnay and Daikin Vam heat recovery systems.

Discover more
about us

Learn all about how we excel in the Design, Installation, Maintenance and Service of Air Conditioning Heat Pump units, Mechanical Ventilation systems, Heat Recovery units, Hydronic Underfloor systems. Let's keep you feeling comfortable all year round!

With each performance we give we hope it will be our best. That’s why we hold ourselves to the highest standard and why client feedback is therefore vital. It shows us how we have carried out our objectives, and how we can further improve.

L.P. McClurg & G.E. Bowyer, Westmorland

“We appreciate the efforts that Hartnell Coolheat has made to endeavor to ensure we are satisfied customers. Thank you for your professional and personal interest.”

Testimonials

R.G. & S.D. Williams, Casebrook

“Three big ticks for any company is indeed a success story. Thanks once again, we really appreciated the service.”

Owen & June Thomas, Westmorland

“You were recommended to us and after making the initial enquiry we were totally confident in what was discussed and because of this did not enter into another quote.”

Matt Brackenridge, Mairehau

“The quality of work is brilliant, the heat pump is located as high as possible, the overflow/drainage pipe neatly runs down the outside wall, and the outdoor unit placed discreetly around the back.”

Margaret & Ross Heveldt, Strowan

“We wish to pass on our thanks to your staff. We found them extremely helpful, tidy in their work habits, considerate towards our wishes and really could not fault their workmanship.”

Margaret Close, Hogben

“The two technicians who installed the unit are a credit to your company. They did an excellent job and were most courteous and helpful. Ensuring that I understood how to use the remote, and that I had passed my “driving test” before they left.”

Pat Richardson, Conifer Place

“We were so pleased with your service – and will be happy to recommend your company to other people.”