Product Description

The Primo Plus shares the same 3rd generation market technology performance as its counterpart (the Primo) with the addition of factory fitted side panels and top grille, for a more traditional look.

Unlike other compact radiators on the market, the Primo Plus comes complete with ‘C’ clips, firmly attaching the side panels in place, thus reducing the risk of injury to anyone manually handling the radiator. Simply turn the ‘C’ clips  180˚ to lock the panels in place.

The Primo Plus is available in four panel/fin configurations to meet any output requirement. It offers a cost-effective solution to provide heat quickly to even the largest commercial areas.

Primo Plus has been verified by the Energy Saving Trust

* Heat output at a ∆T 50 and 30°C from the  T11 and T22 Primo and Primo Plus radiators, compared to the main market competitors. Using British Standard testing data from EN 442-1:2014 standard. Correct as of July 2016 and valid for 12 months.


Technical Drawings


Installation Instructions

Download installation instructions here


Primo and Primo Plus


Merriott products are guaranteed for a period of 10 years from date of purchase in respect of defective materials and workmanship. The system should be designed in accordance with British Standard Code of Practice for Water Based Heating Systems in Buildings BS EN 12828:2012+A1:2014 and BS EN 12831: 2003. The installation and commissioning of the system should comply with BS EN 14336:2004. On completion of the installation, the system should be properly flushed and filled in accordance with the British Code of Practice for the Treatment of Water in Domestic Hot Water Central Heating Systems BS 7593:2006, Part L of Building Regulations and Good Practice Guidance for Scotland. Merriott strongly recommends the use of corrosion inhibitor for all applications. Failure to observe these standards may invalidate the manufacturer’s warranty.

Currently, there is no BIM available for this radiator.