Salus RT520 Boiler Plus Compliant Thermostat (Wired)
Salus RT520 Boiler Plus Compliant Thermostat (Wired) additional 1Salus RT520 Boiler Plus Compliant Thermostat (Wired) additional 2
5 Year Warranty
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£40.00 ex VAT£48.00 inc VAT


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The Salus RT520 Boiler Plus Compliant Thermostat is the most cost effective, fully compliant Boiler Plus thermostat solution on the market. It comes with a new on-board load compensation feature, providing homeowners with superior efficiency and enhanced heating control comfort.

It includes an LCD display and a selection of added operational and efficiency functions, including 4 energy saving features that make your system Boiler Plus compliant. This thermostat can be programmed to make sure that you know exactly when a boiler service is required and the landlord can then access to action. It also comes with a landlord PIN entry option, giving a landlord or building owner access to certain settings and menus

Load Compensation: This is one of the 4 energy saving features that makes a system Boiler Plus compliant. Therefore the RT520 is the most cost effective, fully compliant thermostat option on the market.

Taking the most commonly used OpenTherm protocol compatible with most new boilers sold in the UK, on board load compensation allows the homeowner to more efficiently manage their heating and reduce energy usage and costs.

  • RT520 will be the most cost effective, fully compliant thermostat option on the market
  • OpenTherm provides more precise control of the boiler through the control of the gas valve
  • Optimisation Functions: Optimum Start and Optimum Stop
  • New larger, clearer, easy to read LCD
  • Simple, quick and straightforward operation and setup for all users
  • TPI (Time Proportional & Integral) ‘self-learning’ Functionality
  • More precise heating control with increased comfort and improved energy efficiency
  • ErP Rating V Improved ErP rating means better efficiency rating of the whole system and total cost reductions
  • ErP IV is a benchmark minimum for some EU markets
  • Battery operated
  • Simple and quick to install with no 230v wires
  • Excellent range and pre-paired out of the box
  • 5 year warranty

Code: RT520

Customer Reviews5.05 5.0/5 Based on 2 reviews


Outstanding bit of kitReviewed by P Duffy on 08 Dec 2023

Fitting and setting up was simplicity itself and there was an immediate response from the central heating system. The temperature was held accurately at the programmed limits and a quick check of the meter showed that it was more economical. The package information is basic and a download of the full manual is essential to get the best from the unit


Exact replacement. Works fine.Reviewed by Pauldoody88 on 27 Jan 2023

Next day delivery was a welcome option. Thank you.

Delivery Policy

Last updated 14th December, 2023

This Shipping & Delivery Policy is part of our Terms of Service ("Terms") and should be therefore read alongside our main Terms:

Please carefully review our Shipping & Delivery Policy when purchasing our products. This policy will apply to any order you place with us.

What are my Shipping & Delivery Options?

We offer various shipping options. In some cases a third-party supplier may be managing our inventory and will be responsible for shipping your products.

FREE Shipping

We offer FREE 2-3 working day delivery on all orders over £99 received before 4pm. All orders placed under £99 are charged at £4.95 (£4.13 ExVAT).

For Portable Power please allow up to 4 working days for delivery and Solar Panels are shipped via our pallet delivery service which is a £100.

Next Day Delivery

We also offer Next Working Day Delivery on all orders received before 2pm. Once again, all orders placed after 2pm on a Friday and at the weekend will be processed on Monday and then sent out for Next Working Day Delivery.

Northern Ireland, Highlands & Channel Islands 

Please contact us for our shipping rates to Northern Ireland, Scottish Highlands & Channel Islands.

Please note; we can't currently ship portable power items to Northern Ireland due to insurance issues with the courier.

Do you deliver Internationally?

We do not offer international shipping.

What happens if my order is delayed?

If delivery is delayed for any reason we will let you know as soon as possible and will advise you of a revised estimated date for delivery.

For EU and UK consumers: This does not affect your statutory rights. For more information please refer to our Terms.

Questions about Returns?

If you have questions about returns, please review our Return Policy:

How can you contact us about our Delivery?

If you have any further questions or comments, you may contact us by:

  • Email:


Last updated June 24, 2022

Thank you for your purchase. We hope you are happy with your purchase. However, if you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund, store credit, or an exchange. Please see below for more information on our return policy.


If you find you have received the wrong item, you need to contact us within 7 days of receipt of goods. Anytime after this you are responsible for returning the goods at your own cost following the standard returns process.

All returns must be postmarked within thirty (30) days of the purchase date. All returned items must be in new and unused condition, with all original tags and labels attached.


To return an item, please visit click the below. Please use your order number for the Return Merchandise Authorisation (RMA) number. Please place the item securely in its original packaging and the returns form which you can download below. You can then mail your return to the following address:Eco Wizard Ltd

Eco Wizard Ltd
Attn: Returns
Queens Avenue
Macclesfield, Cheshire SK10 2BB
United Kingdom

We ask that all customers when returning products send the goods via a trackable courier service. Underfloor Wizard Ltd t/a ECO Wizard will not be held responsible for goods which do not arrive at our premises.

Please note, you will be responsible for all return shipping charges. We strongly recommend that you use a trackable method to mail your return. 

Download Returns Form


After receiving your return and inspecting the condition of your item, we will process your return or exchange. Please allow at least seven (7) days from the receipt of your item to process your return or exchange. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your return has been processed.


The following items cannot be returned or exchanged:

  • opened box, damaged, missing or incomplete items cannot be returned.

For defective or damaged products, please contact us at the contact details below to arrange a refund or exchange.


If you have any questions concerning our return policy, please contact us at: