new property, iFlow + navian installed incorrectly?

[iflower]

I have a Navian boiler with an iFlow air system that provides air around the house via high velocity conduit. It's just over a 1 year old property and I just moved in and found the heating suboptimal.



I have had a plumber indicate the system is designed and installed incorrectly, which the builder disputes. I am filing for a warranty claim but curious if I could get some internet stranger bias or advice one way or another.

Issues:

Heating in most rooms is poor, room does not reach temperature set point on thermostat of 23c

Boiler/heating comes on and off frequently (every 20-30 mins)

No return airflow from upper level into boiler/hvac, possibly causing balancing/pressure issues

There's open ducting going from the mech room directly outside

Boiler intake not connecting to fresh air inlet



The plumber claims

the high velocity ductwork is incorrectly designed and needs to be re-done

there's leaking or missing ducts in crawlspace

gas line code violations

incomplete iFlow setup

no recirculation

pipes un-attached (pressure relief valve?)

incorrect material used (90' ptex connectors?)



Can anyone provide their opinion based on the photos and confirm the plumbers concerns?

Thanks

 

[gmartine]

I thought I'd replied to this. One of the flues not connected, lots of visible shoddy pipe and duct work. You don't need further confirmation about the quality of this install, it should probably be condemed.

Get it fixed and sue the builder for the cost who probably did it.

 

[iflower]

I thought I'd replied to this. One of the flues not connected, lots of visible shoddy pipe and duct work. You don't need further confirmation about the quality of this install, it should probably be condemed.

Get it fixed and sue the builder for the cost who probably did it.

I believe I will have to go through warranty first, however it does mean the original installer would be required to remediate

 

[gmartine]

Ok, the process is the same as ours in the UK in that you have to give the builder/plumber a chance to make good. That would be fine unless he denies there is a problem, does your warranty cover all outcomes in that regard?

 

[iflower]

builder sent me the iflow manual and pretty much said to spec. 2 separate plumbers and a HVAC specialist say it's a message and spectrum of work that's needed. Im pretty lost at how much this needs to get fixed

 

[gmartine]

Builder is obviously stalling by mucking you about, is there a trade body you could report the work to and get an official report? Your HVAC guys need licencing, I'd go to them.

https://www.avvo.com/legal-answers/can-i-sue-for-faulty-installation-of-hvac-system-i-2099128.html

 

[ShaunCorbs]

Yep agree installation issue