Can Heat Pumps Run Efficiently at 5.9'F outdoor temperature?
Most heat pump failures have nothing to do with the unit itself. Fewer than 1% of issues trace back to the equipment, 99% come down to design, installation, and commissioning.
Mario Dodić, founder of HVAC Education Hub, takes attendees through a real-world case study: a heat pump system he designed, installed, and commissioned himself in Zagreb, Croatia, in an older, poorly insulated building, not a showroom. Using live data from a system that maintained 22°C (71.6 °F) indoors on the coldest day in 12 years (−14.5°C / +5.9°F), Mario walks through the specific decisions that made it work: heat loss calculations, hydraulic design, radiator balancing, weather compensation settings, and the one controller parameter that caused a 300% spike in power consumption.
The session ends with a look at Heat Pump Journey – HVAC Education Hub’s online microlearning platform built around this case study, designed for installers and engineers who need practical, field-proven knowledge without sitting through hours of PowerPoint training.
What you’ll leave with: a clear understanding of why commissioning matters more than any single component, and what good hydronic design looks like in practice.
