HRV contacted me last week advising it's time for our 2 yearly service and it would cost $220 for a contractor to come out and replace the filter (and check some basic settings).
Is this really required every 2 years? Is it practicle/easy enough to change the filter myself? Is this expensive for what they actually do?
Would love some feedback/thoughts on this.
Thanks guys
http://www.hrv.co.nz/