Design conditions
State external temperature, room set points, ventilation assumptions and margins.
Heat-pump system design
Get a heating design that works in every room.
A good heat pump needs more than the right unit. FLO checks the rooms, radiators, hot water and controls so the full system can be designed together.
Every property is different. The free survey checks what is possible before you commit to a system.
The answer you need
What makes a heat-pump design credible?
A credible design shows the building heat loss, the selected design conditions, available equipment output, emitter performance, hydraulic arrangement, hot-water duty and control strategy as one connected calculation.
The property-specific checks
What will FLO check for your property?
We use these details to work out what is practical, what needs more investigation and what the next step should be.
Water temperatures
Match flow temperature to room loads, emitter outputs and expected efficiency.
Control sequence
Explain zoning, weather compensation, hot-water priority and backup operation.
The next step with FLO
What will your assessment and quote cover?
FLO starts with your property, then explains the recommended work, the price, important exclusions and the next steps in writing.
Useful details to share
Request a free heat-pump surveyRoom survey and heat-loss modelExisting pipe and emitter informationHot-water demand and plant spacePreferred comfort and operating pattern
Heat-loss and equipment-selection basis
Emitter and flow-temperature schedule
Hydraulic and control description
Commissioning targets and responsibilities
Good to know
Questions you may have.
Why does flow temperature matter so much?+
It affects emitter output and heat-pump efficiency. The design must find a temperature that meets room loads without creating avoidable energy use.
Is oversizing safer?+
Excess capacity can increase cycling and cost. Selection should address peak conditions and modulation rather than add an unexplained safety margin.
Who should retain the design records?+
The building owner should receive the final design assumptions, settings and commissioning information as part of handover.
What might change the recommendation?+
A manufacturer selection printout is not the whole design. It cannot replace building inputs, emitter checks, hydraulic detail and a control sequence for the actual property.
Original guidance and sources +
Talk to FLO
Just have a question?
Have a question about heat-pump system design or your property's suitability? Ask FLO and we'll point you to the right next step.