Heat recovery ventilator ratings part 4 continues our expert and unbiased reviews with a look at the Glow-Worm, Greentek, Harvest, Heatrae Sadia, Helios, Honeywell, Hoval, Imperial, and Itho brands.
GLOW-WORM - renew-ability.co.uk -<1*
The CLEARLY HEAT RECOVERY units are available in two sizes and are independent systems. They feature electronic controls but their website is not much help and the guarantee on the units is not very good when compared to other brands.
This brand is from IMPERIAL MANUFACTURING GROUP and is made in Canada. The PH-ES units use push through design for quieter operation and have automatic defrost. They are backed by a good warranty.
This brand offers a wide selection of stand-alone systems. Their DC CEILING TYPE features a dc inverter drive that controls the system based on the amount of carbon dioxide in the room. It has a variable speed fan for quiet and efficient operation. Their website is not much help and does not have a stated guarantee.
The HRU ECO 4 is a basic stand alone ventilation system. It has a summer bypass as well as frost protection but the guarantee on the unit is not very good when compared to other brands.
The KWL systems have "easy controls" where they can be controlled by a laptop or smartphone. The units are made in Germany and are sold in Europe. The warranty is not very good when compared to other brands.
The TRUEFRESH model units are available in 150 and 200 cfm sizes. They have dual variable speed fans for efficiency but the warranty on the units is not as good as many brands.
The HOMEVENT systems are stand alone ventilation systems that are available in three different sizes. They are available in Europe but their website is not much help and does not have a stated guarantee for their products.
This brand is from IMPERIAL MANUFACTURING GROUP and is made in Canada. The PH-ES units are energy stare rated and use push through design for quieter operation. They have automatic defrost and are backed by a good warranty.
The HRU ECO 150 model is for smaller homes while the HRU ECO 4 is for larger properties. They include a duct system for independent operation and can be controlled through a wall switch or by remote control. The guarantee on the systems is not as good as other brands.