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Halcyon is a brand of radiators exclusively offered by the company Stelrad, a well-established and prominent name in the UK heating industry. Stelrad has been manufacturing radiators since 1936 and is revered for its wide range of cost-effective heating solutions. The Halcyon range of radiators is primarily designed as compact panel radiators for central heating systems. They aim to provide efficient and reliable heating while maintaining a sleek and space-saving profile. With a selection of different configurations to suit various heating needs, and a versatile range covering all domestic installs, Halcyon radiators are designed to deliver optimal warmth.
Halcyon radiator

Halcyon Double Panel Radiators

The most popular of Halcyon's radiators sold at City Plumbing is the K2 range. Offering maximum heat output, these double panel radiators are the most common and robust of choices with increased surface area promoting greater heat transfer to the room. Suitable for spaces requiring significant warming, Halcyon double panel radiators maximise thermal performance through their versatile convector design. Deeper than single panel radiators, these radiators work well in both home and commercial settings.
Halcyon double panel radiators

Halcyon Single Panel Radiators

Halcyon’s K1 collection consists of single panel radiators which are a popular choice for those seeking a slim, efficient, and reliable heating solution, especially for smaller rooms or areas where space is at a premium. With significantly reduced depth compared to K2 radiators, single panel radiators are unobtrusive and therefore ideal for hallways, bathrooms, under windows and smaller rooms. Boasting efficient heat output, durable construction and timeless aesthetics, these radiators promote a straightforward installation process.
Halcyon single panel radiator

5 of the Best Halcyon Radiators

Read time: 6 mins
We highlight five of our top halcyon radiators and the benefits of installing them. Select the best heating solutions for your home or business with Halcyon radiators.
Halcyon blog

Halcyon: FAQs

What Types of Halcyon Radiators Are Available?
Halcyon offers three main radiator types including:
  • K1 (Type 11) Compact: Single panel, single convector, ideal for smaller rooms and areas where space is limited due to its slim profile.
  • K2 (Type 22) Compact: Double panel, double convector, provides high heat output, suitable for larger rooms and main living areas. 
  • P+ (Type 21) Compact: Double panel, single convector, offers a good heat output in a slimmer design than the K2, perfect for rooms needing more heat than a K1 but with less depth.
What Material Are Halcyon Radiators Made From?
Halcyon radiators are made from high-quality steel, a common and efficient material for central heating radiators.
What Finish Do Halcyon Radiators Have?
All Halcyon radiators come in a classic RAL 9016 white gloss finish, which is a standard, versatile white that complements most interiors.
Do Halcyon Radiators Come with a Warranty?
Yes, Halcyon radiators typically come with a generous manufacturer's warranty, often 10 or even 15 years, providing peace of mind regarding their quality and longevity.
Are Halcyon Radiators Easy to Install?
Yes, they are designed for straightforward installation and come complete with all necessary wall brackets, plastic grommets, blind plugs, air vent plugs, screws, and plastic plugs. However, installation should always be carried out by a qualified professional (e.g. a Gas Safe registered engineer if it's part of a gas central heating system)
Where Can I Buy Halcyon Radiators?
Halcyon radiators are widely available at some fantastically low prices from City Plumbing both in-store and online.

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