Building services professionals wanting to know how a particular HVAC system works can find out at London HEVAR 2009, which has a live demo area and exhibitor seminars.
The two-day HVAC exhibition takes place at the Royal Horticultural Halls in Greycoat Street, London on September 23-24.

Day one (10am) sees F-gas training provider Quidos demonstrate how (AIRS) its air conditioning report system allows assessors to easily input and upload air conditioning reports to a central database.

At 11am, Wilo will show off its Wilo Brain box and later at 1pm S&S Northern will show visitors how its Gas Pressure Proving and Gas Interlock systems work.

Business Edge will be putting through its paces the ClimaCheck performance analyser and Fri3Oil flushing system at 2pm.

A Hi Velocity mini duct system and air purification system will be put in the spotlight in the demo area by Cooling & Heating Sales at 3pm.

Day 2 of the exhibition brings repeat demonstarions from many of the firms mentioned on day 1 and includes a demo from Spirotech at 12 nooon and VES Andover at 2pm

London HEVAR also hosts exhibitor seminar talks kicked off by Lochinvar presenting 'Solar thermal and its integration with industrial & commercial hot water' at 10.30am on day one.

This semonar's speaker Steve Addis (of LZC Solutions) will explain the importance of not ignoring fossil fuels when designing such systems because solar will not satisfy the total requirement of a commercial or industrial building. H ewill also highlight recent innovations in design of direct gas-fired water heaters and will dispel some myths surrounding solar technology.

At 11.30 am Broag's Mark Northcott will give a talk on 'Sustainability' which poses the question 'are we being lead in the wrong direction?' and how much of the information we receive is actually just a sales pitch as opposed to science.'

S&S Northern's Steve McMahon presents 'Gas safety in commercial premises and schools' at 12.30. Ventilation and gas interlocks in commercial kitchens and ventilation in the classroom will be discussed.

At 1.30pm, Bryan Barlow from Spirotech will present the CPD accredited 'Energy Efficent Wet Systems' seminar, which addresses problems created in the commissioning phase.

Dr Keith Jones the operations director at ECMK presents Air Conditioning and the Energy Performance of Buildings at 2.30pm. He will cover regulations and what you need to know about air conditioning energy assessments.

At 3.30pm, Chris Deardon from Medem presents 'Gas safety solutions in education buildings'.

Systemair's Bob Sproston will discuss the 'Ecological and financial benefits of energy efficient ventilation products' at 4.30pm. He will cover only using the energy we need to ventilate the areas that need ventilation at times when it is needed. Attendance at London HEVAR is free. To book your place or for more details visit LondonHEVAR2009