“The Tekmar system worked very well for all these years only a few minor replacements. I could not expand the unit any more, like changing to programmable thermostats etc. So I went to a trade show and spoke to both reps, can't tell you the difference in both companies attitudes, I will not go further with this. Spoke to Taco, did my research, found Taco was less expensive with quality. Technical support was great and the ZVC406 was exactly what I needed and was easy to install. I can pick and choose what thermostats I want to pair up to the unit and will eventually buy the outdoor indoor sensor. Oh, and your company is always right on target.”
“I installed this for a hydronic radiant heat system, and everything has worked fully to spec, it has useful LED's, and is expandable for when I expand to 4 more zones. The”
