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Honeywell Sparco tmv

Hello all,

My underfloor heating  had a honeywell  sparco (AM series)  valve fitted  by my licenced plumber.

The problem I had  was  the length of time it  took to heat  my home. Upwards of  six hours  and struggled in cold weather.

Has  anyone experience  with this valve  in ufh hydronic systems?

The valve has since been removed and a tekmar/4 way valve fitted  which  performs superbly. Why did  the sparco  valve  under perform?  From what I was told the valve was correctly sized,  not faulty and fitted as per  the instructions.



  • Ironman
    Ironman Member Posts: 6,892
    Simple Question

    Did you try adjusting the sparco valve?
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
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