Technical Services

Our Technical Services team of engineers have full professional indemnity insurance and can provide you with a complete design for heating, plumbing and mechanical ventilation in any new single or multi-residential building project. Systems will be designed to ensure a high level of comfort and energy efficiency for the homeowner and with our comprehensive product range we can offer solutions for any project or budget.

We will work with your design team to assess your requirements and suggest solutions and deliver a comprehensive bespoke technical design to include product specification, full schematics and drawings which will be in accordance with current building regulations and best practices. We also offer commissioning, ancillary certification and technical support plus installer training across our product range.

Design Services

Our Technical Services Team will provide full system design for mechanical services with equipment specification. This will be a bespoke design according to each individual project’s requirements and will include:

  • Heating & Hot Water Services
  • Plumbing Systems
  • Ventilation Systems
  • Renewable Energy Technologies
  • Above Ground Drainage
  • Find Us: Technical Services, Lower Ground 4C,
  • Fingal Bay Business Park, Balbriggan, Co. Dublin
  • Email:
  • Phone: 09064 24000

Mechanical Services Design Process

The Heat Merchants Technical Services design team require the following information in order to provide a complete design proposal

  1. Contact your local Heat Merchants branch or local representative with your project details.
  2. Please provide a full set of building drawings including dimensions, sections and elevations in AutoCAD or PDF format.
  3. And a Preliminary BER report and DEAP xml files for dwelling


Once these documents are received and reviewed, the design request will be followed up by a telephone conference and if necessary a site visit by one of our design engineers and within 2 weeks we will return the required technical design documentation and schematics which includes;

  • Full design of all mechanical services in dwelling
  • Full schedule of plant or material required Design that is in compliance with current building regulations
  • If required indicative piping and ventilation layouts
  • Operation & maintenance manuals for all the products used in design
  • Design covered by Professional indemnity Insurance
  • Heat Merchants will sign off on project as the Ancillary Certifier on design

Cost of Technical Design Service

The Technical Design Service is part of the service provided to clients we do however request a deposit of €750 which is fully redeemable against subsequent purchases for your home. This deposit can be used in any of our Heat Merchants or Tubs & Tiles branches nationwide so there is effectively no real cost to the homeowner for the service.

Building Regulations:

When designing Heating & Mechanical Services our Technical Team will ensure that the building will adhere to all relevant legislation and best practices including:

  • SR 50 / 1, 2 & 3 – Building Service: Code of Practice
  • IS EN 12828: 2012 + A1 : 2014 – Heating Systems in Buildings: Design for Water Based Heating Systems

With further reference to:

  • Technical Guidance Documents for Mechanical D, F, G, H, J & L
  • I.S. EN 813:2014 Domestic Gas Installation (Edition 3)
  • ESB Networks document DTIS-230206-BRL for connection of micro-generation


View Heat Merchants Heating & Plumbing Solutions Here  


View Heat Merchants Self Build Brochure Here