Rural England
An oil boiler retired, with emitter work limited to four rooms.
Oil boiler replaced following a room-by-room heat loss survey, with emitters resized for low flow temperatures.
- 4
- Elements designed together
Illustrative example. Not a completed Tilos installation. This page shows the structure a real case study will follow.
The constraint
Solid walls, limited insulation options, and an existing radiator circuit sized for a boiler running at 70°C.
Why we designed it this way
A heat pump matched to the old boiler's output would have been substantially oversized — boilers are routinely specified with generous margin. We calculated the actual design heat load room by room and sized to that.
Only the rooms that needed larger emitters got them. Replacing every radiator is easy to quote and usually unnecessary; the survey showed which rooms would fail at a lower flow temperature and which would not.
Outcome
Comfort maintained at a materially lower flow temperature, with the emitter work limited to the rooms that actually required it.
The system
- Replaced
- Oil-fired boiler and tank
- Design
- Room-by-room heat loss calculation
- Emitters
- Resized where required for low flow temps
- Hot water
- Cylinder sized to real demand and schedule
Technologies
- Heat pumps
Performance figures are modelled estimates specific to this property. Every proposal states its own assumptions.
Ready to design your energy system?
Speak directly with Sebastian or one of our energy consultants about your home, your energy use and what you want to achieve.