A better way to research
One useful answer per question—without sales fog
The subjects come from real FLO search enquiries and the questions homeowners raise before a survey. Numerical claims are tied to current official guidance, measured field studies or clearly labelled worked examples. For deeper, evergreen planning resources, use the separate heat-pump guide library.
19 answers
Costs and bills
Choose the question closest to the decision you are making now.
How much electricity does a heat pump use?
A practical way to estimate annual heat-pump electricity use from your home’s heat demand, seasonal efficiency and hot-water needs.
Read the answerWhat does a heat pump cost to run on a cold day?
Understand cold-day heat-pump cost using heat demand, average daily load, cold-weather efficiency and your electricity tariff.
Read the answerCan I estimate heat-pump running costs from my energy bills?
Use historic gas, oil, LPG or electric consumption as a cautious cross-check for heat-pump running-cost estimates.
Read the answerAre solar panels worth adding to a heat pump?
How solar generation, winter heat demand, batteries, export rates and smart tariffs affect the value of pairing solar panels with a heat pump.
Read the answerIs a smart tariff worth it for a heat pump?
A plain-English guide to time-of-use heat-pump tariffs, half-hourly data, peak prices, preheating and battery flexibility.
Read the answerWill a heat pump save me money compared with gas?
A fair heat-pump versus gas comparison using heat demand, seasonal efficiency, tariffs, standing charges and the way the home is heated.
Read the answerWhy do heat-pump running costs vary so much?
The building, water temperature, system design, controls, hot water and tariff factors that make two heat-pump bills look very different.
Read the answerWhat does SCOP mean on a heat-pump quote?
How to read SCOP, COP and seasonal performance figures without mistaking a product rating for a guaranteed household bill.
Read the answerDoes a lower flow temperature reduce heat-pump bills?
Why lower heating-water temperatures can improve efficiency, and why comfort and radiator output must be checked before turning settings down.
Read the answerIs a heat pump cheaper to run than oil heating?
Compare oil and heat-pump running costs using litres delivered, boiler efficiency, heat demand, seasonal performance and current fuel prices.
Read the answerHow much does it cost to replace an oil boiler with a heat pump?
A practical breakdown of the heat pump, cylinder, radiators, electrical work, oil-tank work, funding and survey items in an oil conversion.
Read the answerWhat is the total cost of an air source heat pump?
Understand the full installed cost of an air source heat pump in Scotland, including design, emitters, cylinder, electrics, funding and aftercare.
Read the answerHow much does a heat-pump hot-water cylinder cost?
Why cylinder prices vary, when a new cylinder is needed and which installation, controls, space and funding details should appear in a quote.
Read the answerHow much do radiator upgrades cost for a heat pump?
How room heat loss, radiator output, pipework and installation access determine the real cost of heat-pump radiator upgrades.
Read the answerHow much does heat-pump servicing cost in Scotland?
A clear guide to typical heat-pump service cost, what should be included and which access, system and repair items can change the price.
Read the answerHow much can a heat-pump repair cost?
Understand call-out, diagnosis, labour, parts, refrigerant and warranty factors before approving a heat-pump repair.
Read the answerHeat pump vs gas boiler: which costs less over 15 years?
Build a fair 15-year heat-pump and gas-boiler comparison using net installation cost, fuel scenarios, service, replacement and discounting.
Read the answerHow long does a heat pump take to pay back?
Calculate a heat-pump payback period without exaggerating savings, and understand when replacement cost, funding, comfort and price uncertainty matter.
Read the answerWhat can increase the cost of a heat-pump installation?
The design, access, radiator, cylinder, electrical, planning and existing-system factors that can increase an air-source heat-pump quote.
Read the answer12 answers
Your home
Choose the question closest to the decision you are making now.
Can a heat pump replace a combi boiler?
How an air-to-water heat pump can replace combi-boiler space heating and hot water, and why storage space often becomes part of the design.
Read the answerCan a heat pump work with microbore pipework?
Why microbore pipework is not an automatic no, and how an installer checks flow, pressure drop, radiator circuits and practical upgrade routes.
Read the answerCan a heat pump heat a draughty home?
How heat loss, air leakage, emitter size and sensible fabric improvements determine whether a draughty home can use a heat pump well.
Read the answerWhere can an outdoor heat-pump unit go?
How airflow, sound, access, drainage, pipe routes, boundaries and planning shape a good outdoor heat-pump position.
Read the answerDo heat pumps need underfloor heating?
Why heat pumps can work with radiators, underfloor heating or a mixture, provided the emitters are designed for the room heat loss.
Read the answerDo heat pumps work with existing radiators?
Learn when existing radiators can stay, why output changes at lower water temperatures and how a room-by-room schedule prevents unnecessary replacements.
Read the answerCan I keep my existing hot-water cylinder and pipework with a heat pump?
The coil, capacity, controls, insulation, flow and pressure-drop checks needed before reusing a hot-water cylinder or heating pipework.
Read the answerCan a heat pump work in a flat?
A practical Scottish guide to heat pumps in flats: outdoor space, ownership, planning, sound, cylinders, shared fabric and alternatives.
Read the answerDo heat pumps work in old stone houses?
How heat loss, moisture-aware insulation, radiator output, pipework and steady operation determine heat-pump performance in Scottish stone homes.
Read the answerDo heat pumps work in Scotland’s winter?
Measured evidence on cold-weather heat-pump operation, plus the sizing, defrost, emitter and backup checks a Scottish design needs.
Read the answerCan a heat pump cool my home in summer?
Why some heat pumps can reverse for cooling, why ordinary radiators usually cannot, and what emitters, condensation and controls need to change.
Read the answerWhat is a hybrid heat pump and when is it useful?
How a heat pump and boiler can share a heating system, when hybrid design may help and why controls, tariffs, emissions and funding need scrutiny.
Read the answer10 answers
Planning an installation
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What happens during a heat-pump survey?
What a proper home heat-pump survey checks, what to prepare and how the findings should appear in the design and quote.
Read the answerHow long does a heat-pump installation take?
Typical installation duration, what changes the programme and what a homeowner should confirm before work starts.
Read the answerDo I need three-phase electricity for a heat pump?
When a domestic heat pump can use a single-phase supply, what the installer checks and when the electricity network operator becomes involved.
Read the answerWhat questions should I ask a heat-pump installer?
The design, performance, installation, warranty and aftercare questions that turn a heat-pump sales quote into a checkable proposal.
Read the answerWhy do I need a room-by-room heat-loss calculation?
How room heat loss determines heat-pump capacity, radiator output, comfort and the assumptions behind a useful running-cost estimate.
Read the answerShould I insulate before installing a heat pump?
How to sequence insulation and heat-pump work without delaying unnecessarily or sizing the system against assumptions that may never happen.
Read the answerHow do I compare two heat-pump quotes?
A like-for-like method for comparing heat-pump design, scope, performance assumptions, warranties, exclusions and aftercare.
Read the answerWhat size heat pump does my house need?
Why floor area and boiler size are not enough, and how room heat loss, hot water, local weather and manufacturer data determine heat-pump capacity.
Read the answerHow is an air source heat pump installed?
From survey and design to outdoor base, pipework, cylinder, radiators, electrical connection, commissioning and handover.
Read the answerDoes a heat pump need planning permission in Scotland?
Current Scottish permitted-development limits for domestic air-source heat pumps, including siting, conservation areas, listed buildings and MCS sound.
Read the answer6 answers
Living with a heat pump
Choose the question closest to the decision you are making now.
Should I leave my heat pump running all day?
Why heat pumps often suit longer run periods, how to use temperature setbacks and when schedules still make sense.
Read the answerHow warm should a heat-pump home feel?
What steady heat feels like, how room targets and radiator temperatures differ from a boiler, and when comfort indicates a design or control issue.
Read the answerHow hot should heat-pump hot water be?
How cylinder targets, hygiene cycles, household demand and immersion backup affect heat-pump hot-water comfort and cost.
Read the answerWhy is my heat pump defrosting?
Why outdoor coils frost in cold damp weather, what a normal defrost looks like and which signs should be reported to an engineer.
Read the answerWhat should I check after my heat pump is commissioned?
A homeowner handover checklist for controls, temperatures, documents, warranties, monitoring, maintenance and the first weeks of operation.
Read the answerHow do I use heat-pump controls and weather compensation?
A plain-English guide to heating curves, room influence, schedules, setbacks, hot water and careful heat-pump control changes.
Read the answer4 answers
Funding and quotes
Choose the question closest to the decision you are making now.
What should a heat-pump quote include?
A homeowner checklist for comparing heat-pump design, equipment, radiators, hot water, electrics, commissioning, warranties and price.
Read the answerCan I apply for heat-pump funding after work starts?
Why Scottish heat-pump work must wait for a written funding offer, and how to line up advice, survey, quote and application without losing momentum.
Read the answerDo I qualify for the rural heat-pump uplift?
How Scotland’s rural and island uplift is determined, how much it can add and why postcode assumptions should be confirmed by Home Energy Scotland.
Read the answerWill Scottish funding cover the whole heat-pump cost?
How the Scottish heat-pump grant, optional interest-free loan, rural uplift and whole-system quote fit together.
Read the answer5 answers
Servicing and repairs
Choose the question closest to the decision you are making now.
What maintenance does an air source heat pump need?
The safe homeowner checks, professional service tasks, records and warning signs that keep an air-source heat pump reliable.
Read the answerWhat is included in a heat-pump service?
A practical heat-pump service checklist covering records, outdoor unit, hydraulics, hot water, controls, performance and written findings.
Read the answerHow often should a heat pump be serviced?
Set the correct heat-pump service interval using manufacturer, warranty, system, landlord and usage requirements rather than a generic rule.
Read the answerWhy has my heat-pump electricity use increased?
A step-by-step check of weather, tariffs, hot water, immersion use, flow temperature, controls, filters and faults when heat-pump bills rise.
Read the answerWhen should a heat pump be repaired rather than replaced?
A decision framework for repair versus replacement using diagnosis, age, warranty, parts, repeat faults, performance and the wider heating system.
Read the answer4 answers
Commercial and development
Choose the question closest to the decision you are making now.
Can landlords get a heat pump for a rental property in Scotland?
Current landlord-loan rules, tenant planning, system design, metering, handover and maintenance for Scottish rental-property heat pumps.
Read the answerAre heat pumps suitable for commercial buildings?
How load profile, temperatures, emitters, electrical capacity, heat recovery, controls and business continuity determine commercial heat-pump suitability.
Read the answerHow is a commercial heat-pump system designed?
The commercial heat-pump design sequence from load data and temperatures to source, emitters, hydraulics, electrical capacity, resilience and measurement.
Read the answerWhat should a property developer plan before fitting heat pumps?
A developer checklist for heat loss, plant space, acoustics, electrical capacity, plot coordination, commissioning, resident handover and defects.
Read the answerHow to use these articles
Start with reliable figures, then apply them to your home
We use official scheme rules for funding, measured projects for performance and installation figures, and worked examples that show their assumptions. Your home survey is where those general figures become a system design and written quote for your property.