Bulldog Heat Pump: Smarter, More Efficient HVAC

Innovative Hybrid Heat Pump Systems for Sustainable, Quiet & Reliable Performance

HIGHMARK is the official Bulldog Heat Pump representative in New York City and New Jersey, proudly bringing hybrid HVAC innovation to buildings across the region. Bulldog is a leading manufacturer of high-efficiency hybrid heat pump systems known for quiet operation, reduced maintenance, extended equipment life, and superior reliability compared to traditional water-source heat pumps. Their hybrid configuration combines water-cooled DX cooling with hydronic space heating, eliminating compressor use during heating to improve energy efficiency.

Bulldog 2.0 advances sustainable HVAC by integrating a factory-mounted electric resistance heater with a low-temperature hydronic coil, functioning efficiently with water as low as 95°F. This setup offers fuel flexibility using boilers or air-to-water heat pumps, and delivers up to 50 percent reductions in natural gas consumption and system sizing. At the same time, it maintains quiet operation and a lower carbon footprint. With tens of thousands of Bulldog units installed across North America, including 1,700 in a single New York City high-rise, Bulldog Heat Pump supports HIGHMARK’s mission to elevate building performance across the Northeast.

Let’s create a more sustainable world. 

Our team partners with engineers, contractors, owners and operators across all commercial and high-rise residential building types. We customize our building efficiency technologies for every job to meet the specific needs of the most demanding structures.