A heating survey becomes more useful when the household can describe what is already in the property. That does not require a technical drawing. A single page showing the current heating type, hot-water arrangement, radiators or underfloor heating, controls and available property notes can give the first conversation a reliable starting point.
When briefing a heating engineer, Guildford homeowners can prepare this map without deciding what the new system should be. Home Comfort Assured Renewables provides surveys and quote planning as well as heating system compatibility checks. Both begin with the existing setup rather than a product choice.
Put the current heating type at the top
Start by naming the heating type used now: gas, oil, LPG or electric, if known. If you are unsure of the exact equipment model, do not guess. A photograph of the visible unit and any clear label can accompany the plain description.
Add whether the same setup supplies both space heating and hot water, if known. The purpose is to show the arrangement that exists today. It is not to decide which parts must stay or change before they have been checked.
Draw the hot-water arrangement separately
Hot water deserves its own line because it is one of the items Home Comfort Assured Renewables checks before designing or quoting. Record whether there is a visible cylinder, where it is located and any ordinary household information that affects the discussion, such as which outlets are used most.
Keep the notes factual and avoid opening cupboards or equipment that are not normally accessible. A photograph taken from a safe standing position can show the available space and visible pipework. The survey can resolve the details that a household map cannot.
Mark radiators and underfloor heating room by room
Use a simple list of rooms. Beside each room, write “radiator”, “underfloor heating” or “not sure”. If a room contains more than one visible emitter, note that too. Home Comfort Assured Renewables identifies radiators, underfloor heating, controls, hot water and the existing heating setup as parts of its compatibility checks.
This list is more useful than a general statement that the house has radiators. It shows where the current arrangement differs from room to room. There is no need to calculate output or judge compatibility yourself; the map simply makes the property easier to discuss accurately.
Add controls without interpreting them
Record the controls the household normally uses: for example, a central controller, room thermostat or visible radiator control. Write down where each one is and take a readable photograph if its display or layout matters to the current conversation.
Avoid turning the page into a theory about how the system works. The compatibility service explicitly includes controls, so identifying them is enough. An engineer can then check how the controls relate to the wider setup.
Attach EPC and insulation notes as context
Include a recent EPC if one is available. If the household has records of insulation work, list what the record actually says and when it was completed. If neither is available, state that clearly rather than filling the gap with an assumption.
These documents are part of the property brief. They do not replace the checks carried out before a quote. The property, heating setup, insulation, hot-water demand and radiator or underfloor-heating route should all be checked so the design reflects the home.
Use a six-part page
The finished map can be very short. Give every item a heading and leave space for questions that the survey needs to resolve.
- Current heating type and a clear photograph of the visible unit.
- Hot-water arrangement and the location of any visible cylinder.
- Room list showing radiators, underfloor heating or uncertainty.
- Controls used by the household and where they are located.
- Available EPC and insulation records, with missing information marked as missing.
- Possible outdoor-unit areas shown in wide photographs, without selecting one as final.
Add the property address separately when arranging the appointment.
Keep the map useful by keeping it honest
The best page distinguishes observed facts from questions. “Cylinder in the upstairs cupboard” is an observation. “Will this cylinder be suitable?” is a question for the check. Using those two labels prevents an early guess from becoming part of the quote brief.
When the map is ready, book a heat pump survey and quote-planning visit or ask for heating system compatibility checks, depending on which question needs answering.
Questions customers ask
Do I need exact model numbers for every part?
No. Record model information only where it is clearly visible. A truthful “not sure” is more useful than a guessed specification, and the survey can check the system directly.
Can the one-page map replace a home survey?
No. It prepares the conversation. The property, existing heating setup, insulation, hot-water demand and emitter route should still be checked before designing or quoting.
Bring one honest page: what heats the home now, how hot water is arranged, which emitters and controls are visible, and which questions remain open. The survey can then turn those observations into a checked plan.
