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Advice & Guides

Practical advice.Better projects.

Buying guides and product advice for your home and your next job.

Your guide results

9 guides
White column radiator in a bright living room
Heating

Radiators Buying Guide: How to Choose Radiators for Any Room

Everything you need to compare radiator types, outputs and sizes before you buy — written for installers and homeowners.

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Domestic heating boiler
Heating

Boilers Buying Guide: Combi, System and Regular Compared

How to choose between combi, system and regular boilers — output, hot water demand, fuel type and the parts every swap needs.

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Vertical designer radiator
Heating

How to Size a Radiator: BTU Calculations Made Simple

A step-by-step method for working out the BTU output a room needs, and how to turn that figure into a radiator height and width.

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Wall-mounted gas boiler
Heating

Boiler Efficiency Explained: ErP Ratings and Running Costs

What ErP ratings mean in practice, why flow temperature matters more than the label, and how to keep a condensing boiler efficient.

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Thermostatic radiator valve
Heating

Thermostatic Radiator Valves Explained

What a thermostatic radiator valve does, what the numbers on the dial mean, where TRVs should and shouldn't be fitted, and how smart TRVs differ.

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Domestic oil boiler
Heating

What Size Boiler Do I Need?

A general guide to how boiler size (kW) relates to bathrooms, radiator count and hot water demand — and why a proper heat-loss calculation is the right basis for a final spec.

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Concentric boiler flue fittings
Heating

Combi Boilers Explained: A Buyer's Guide

What a combi boiler is, how it compares with system and regular boilers, and the practical points to weigh up before choosing one.

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White column radiator
Heating

Type 11 vs Type 21 vs Type 22 Radiators Explained

A plain-English guide to panel radiator type numbers — what Type 11, 21 and 22 mean, and how output and depth compare.

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White panel radiator
Heating

How to Choose the Right Radiator for Your Room

Understand radiator types, sizing, heat output and the differences between panel, column and designer radiators.

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