Hi Velocity

Mr. Kelleher

Thinking of installing a Hi V in my attic space to sere as my second floor heat, the unit would run off my Pensotti oil fired boiler and heat the second floor bedrooms and bath. Anyone have any experience with this system this is a finished home so baseboard unfortunately is not an option, the first floor is radiant Heatway tonyx tubing piped off a primary secondary system using the Taco expandable zone control with injection and outdoor boiler control. Hi V opinions about the ceiling feed installation, and possible air treatment.Thanks for the your help.

Starch

Been there, done that.......

....You gotta make sure that your heating lines are protected from freezing, though. The last job we did was with glycol.

System works well. Found out the hard way on the first one we ever did - when the stat first calls for heat, you would get a blast of cool air until the hot water coil got warm. We solved the problem by adding an aquastat to the supply line, ahead of the coil, and that solved the problem.

Starch

Mike T., Swampeast MO

Hi-Velocity Heat & Cool

The nature of the system imparts a "bonus" to A/C, but not to heat. Since they are sized to the A/C load, it's difficult/impossible to get a properly-sized heat & cool job in many areas. In general, think South of Mason-Dixon Line.

Location of the ducts (low or high) isn't supposed to matter in a high-velocity system. I'm familiar only with A/C only systems and this seems to hold true. Uncertain with heat but nice low-speed ceiling fans are likely in order as I find them extremely practical in bedrooms in particular--especially with forced air.

ed wallace

hi v

if your going with hi velocity a/c heat system in attic there are 2 brands spacepac is now offering a hot water heat module the other is unico they also offer a hot water module the differance is in the supply ducts fiberglass or sheetmetal whoever you hire make sure they have experiance installing them

To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"

Gregg Jackson

\"cold blow\" solution

> ....You gotta make sure that your heating lines

> are protected from freezing, though. The last

> job we did was with glycol.

>

> System works well.

> Found out the hard way on the first one we ever

> did - when the stat first calls for heat, you

> would get a blast of cool air until the hot water

> coil got warm. We solved the problem by adding

> an aquastat to the supply line, ahead of the

> coil, and that solved the problem.

>

> Starch