MCS heat-pump design software

Heat-pump design,
simplified.

Draw the floor plan, get the room-by-room heat loss, and send an MCS-ready proposal with the radiator schedule and BUS grant already worked out. A survey becomes a quote in an afternoon — not a weekend of spreadsheets.

Built on MIS 3005 · EN 442 emitter data · live BUS grant rules
Trusted forMCS MIS 3005BUS grantEN 442
42 Orchard Lane — ground floor 4,588 W
Living room Kitchen Dining Hall Bath Study Bedroom 18.8 m² · 1,347 W 7.5 m² · 454 W 733 W 273 W 612 W 700 W
coolhot
What it does

Everything a heat-pump survey needs, in one place

The plan, the calculation, the emitters and the paperwork — joined up, so changing one updates the rest.

Floor-plan editor

Draw rooms to scale, drop in windows, doors, stairs and radiators. Walls split themselves into internal and external automatically.

Heat-loss engine

Room-by-room fabric and ventilation loss on MIS 3005 — adjacency, thermal bridging and unheated buffers handled the way an auditor expects.

Radiator schedule

Real Myson EN 442 catalogue data, de-rated to your flow temperature. See exactly which emitters fall short at low temp — before you quote.

MCS proposal PDF

A branded design document with the plan, heat-loss table, plant selection, pipe sizing and an itemised quote — ready to print or send.

BUS grant, automatic

The right grant picked from the customer's fuel — £7,500 standard or the £9,000 off-gas oil/LPG uplift — and deducted from the quote.

Heat pump & cylinder sizing

Pick the unit and cylinder against the design load and occupancy, with realistic routed pipe runs and velocity checks.

Three steps

Draw it, calculate it, propose it

The order a survey actually happens in. Each step feeds the next, so nothing is typed twice.

Draw the plan

Sketch each room to scale on a tablet or laptop. Add openings and emitters; the tool tracks areas, volumes and adjacencies as you go.

Read the heat loss

Every room is shaded by loss the moment you draw it. Adjust fabric, flow temperature or design conditions and watch the total move.

Send the proposal

Generate the MCS design document with emitters, plant, grant and quote. One file the customer — and an auditor — can read.

afternoon
From front door to finished quote
222
Emitter sizes, real EN 442 data
£9,000
BUS uplift applied automatically
MIS 3005
The methodology, built in
Pricing

Priced per surveyor, not per survey

Design as many systems as you like. No per-proposal fees, no lock-in.

Solo

£0 / forever
For your first jobs and trying the full workflow.
  • Up to 3 active projects
  • Full heat-loss engine
  • Watermarked proposal PDF
Start free
Most installers

Pro

£39 / month
Everything for a working sole-trader installer.
  • Unlimited projects
  • Your logo & accreditations on PDFs
  • Radiator schedule & pipe sizing
  • BUS grant & itemised quoting
Start 14-day trial

Team

£32 / seat
For firms running several surveyors.
  • Everything in Pro
  • Shared project library
  • Company template & pricing
  • Priority support
Talk to us

Your next survey could be your fastest.

Start free, design three systems, see the whole flow end to end.

Start free — no card