41 practical resources

Air conditioning & heating tools

Plan both seasons: calculate size and cost, compare reversible heating and cooling systems, then check property, planning, repair and maintenance details.

Plan and price

Start with size, installation cost, running cost and quote-scope tools.

Calculator Room size calculator Estimate the BTU and kW capacity your room may need. Cost tool Installation cost calculator Build an indicative installed-cost range by system, rooms and region. Checklist Installation quote checker Check whether a quote covers the scope that commonly changes the final bill. Air conditioning running costs Estimate electricity use and compare likely hourly and seasonal costs.

Heating and heat pumps

Use the same installer network for reversible winter heating, heat-pump costs, grants and property fit.

Heating hub Air conditioning with heating Compare reversible heating-and-cooling systems, winter costs and surveyed designs. Air-to-air heat pumps Compare installed costs, running costs, whole-home design and the current £2,500 grant. Installer guide Air-to-air heat pump installation Plan heat loss, room coverage, outdoor siting, electrics and a complete installer quote. Whole-house air-to-air heating Design room-by-room distribution, winter capacity, resilience and a separate hot-water plan. Air conditioner heat mode Set the heating symbol, temperature and fan correctly and recognise a normal defrost cycle. Air-to-air heat pump vs gas boiler Compare delivered heat, zoning, running cost, hot water and hybrid choices fairly. Replace storage heaters with a heat pump Compare direct electric heating, tariffs, room coverage, electrical scope and grant rules. Air-to-air heat pumps for park homes Plan park-home capacity, site consent, outdoor mounting, drainage and hot water. Heat pumps for flats Plan air-to-air heating around consent, hot water, outdoor space and grant rules. Calculator Cheapest way to heat a room Compare direct electric, central heating and air-to-air costs with a free calculator. Heat pump vs air conditioning See where air-to-air and air-to-water systems overlap and which job each solves.

Choose a system

Compare equipment types before deciding what should be surveyed.

Wall-mounted air conditioning Compare the most common single-room split-system option. Best wall-mounted air conditioners Compare installed systems by noise, efficiency, controls and support. Floor-mounted air conditioning Compare fixed floor consoles, low-wall placement and installed costs. Multi-split air conditioning Understand two-to-five-room systems using one outdoor unit. Ducted air conditioning Review hidden systems, costs, space requirements and trade-offs. Ceiling cassette air conditioning Plan four-way ceiling airflow for offices and larger rooms. Systems without an outdoor unit Explore monobloc and water-cooled options for restricted properties. Water-cooled air conditioning Understand internal condenser systems and their installation demands. VRF and VRV air conditioning Plan multi-zone commercial systems, heat recovery, controls and costs.

Rooms and buildings

Find advice shaped around the property or space you need to cool.

Bedroom air conditioning Size and position a quiet system for comfortable sleep. Garden room air conditioning Size quiet year-round cooling and heating for garden rooms and offices. Air conditioning for flats Plan around leases, freeholder consent and outdoor-unit restrictions. Conservatory air conditioning Account for glazing, solar gain and unusually high cooling loads. Loft air conditioning Manage roof heat, awkward layouts and condensate routes. Office air conditioning Compare systems, controls, ventilation interfaces and commercial costs. Server room cooling Plan sensible capacity, resilience, alarms and low-ambient operation. Industrial air conditioning Scope permanent cooling for factories, warehouses and workshops. Commercial heating and air conditioning Scope reversible heat pumps, cooling, winter loads, controls and project pricing.

Planning, repair and care

Check consent, faults, maintenance and the language used in quotes.

Planning permission checker Orientate yourself around property type, siting and protected locations. Emergency air conditioning repair Take safe urgent steps and understand after-hours repair costs. Repair costs and common faults Compare likely repair ranges and whether replacement deserves a quote. Air conditioning not working Diagnose not-cooling, warm-air, water, smell, noise and power symptoms. Air conditioning servicing Understand maintenance scope, frequency and typical annual prices. Commercial maintenance contracts Compare asset coverage, planned visits, records and response commitments. How air conditioning works Learn the refrigeration cycle and the parts named on a quote. Air conditioning glossary Decode technical terms, specifications and contractor language.

From a rough idea to a survey-ready brief

The quickest way to waste money on air conditioning is to begin with a model number. Begin with the room instead: its size, ceiling height, glazing, orientation, occupancy and heat-producing equipment. Our calculator gives an indicative range, while a competent installer should confirm the design load and explain any difference before equipment is ordered.

Once the likely capacity is understood, compare complete installation scopes. For a reversible system, ask for both summer cooling load and winter room heat loss. A useful quote identifies the indoor and outdoor units, pipe and cable routes, condensate and defrost-water disposal, electrical work, access, commissioning, warranties and exclusions.

Advice organised around real property constraints

A bedroom, glazed conservatory, top-floor flat and server room need different answers even when their floor areas match. The system and building guides above cover noise, solar gain, leases, planning, redundancy and maintenance as separate decisions rather than forcing every project into one generic recommendation.

Published prices are planning ranges, not contractor quotations. Use them to identify unusually vague or expensive bids, then rely on a site survey for the final equipment selection and fixed scope. Refrigerant work in the UK must be completed by appropriately F-Gas certified people and businesses.

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