Question Regarding Hyfirell Jacket

ijp66 · Post by **ijp66** » Mon. Mar. 02, 2009 9:13 pm

I just hooked up my Hyfire II this weekend. Love the stove. Blows off alot of heat and works very well. It is in my basement which is a walk out. I have it power-vented out the back of my home. I installed a hot air jacket to hook it into my existing duct work. The DVD shows that you should hook up the hot air jacket to the cold air return which I did. The problem is it seems that there is not alot of warm air coming out of my vents upstairs in any of the rooms. My brother in-law originally thought prior to watching the DVD that it should be tied into the existing oil furnace duct and NOT the cold air return.

If anyone has any suggestions I would appreciate it!

gambler · Post by **gambler** » Mon. Mar. 02, 2009 9:29 pm

How long are the duct runs and are they insulated?
Are you using the furnace blower to move the hot air from the hyfire to the living space?
Is the cold air duct terminated at the hyfire?
Are the factory blowers removed from the hyfire?

ijp66 · Post by **ijp66** » Mon. Mar. 02, 2009 9:43 pm

gambler wrote:How long are the duct runs and are they insulated?
Are you using the furnace blower to move the hot air from the hyfire to the living space?
Is the cold air duct terminated at the hyfire?
Are the factory blowers removed from the hyfire?

The duct runs are insulated. Im not sure how long the runs are.

Do you mean am I using my oil furnace blower to move the hot air?

The hyfire is within a few feet of the termination point.

The factory blowers are still connected.

The stove is running nice and hot. Alot of hot air coming out of the blowers.

The pipe leading from the Hyfire to the cold air return is 14". That pipe seems to be very warm. Just barely any hot air coming out. I kinda thought you would feel the hot air coming out on my first and second floor.

The house is 3 yrs old and very well insulated.

Thanks!

gambler · Post by **gambler** » Mon. Mar. 02, 2009 10:35 pm

Do you mean am I using my oil furnace blower to move the hot air?

Yes that is what I am asking.
Also if you are using the FHA blower, all of the air is supplied by flowing through the hyfire?

WNY · Post by **WNY** » Tue. Mar. 03, 2009 7:42 am

If you hook it into your furance cold air, you should unhook the factory blowers and just use the Furance blower to suck the heat from the stove into your duct work.

Also depends on your duct work, if you have it in the HOT AIR Side using the stock blowers, you need the Back Flow dampers to keep the hot air from flowing back thru you cold air ducts and wasting heat where you don't want it.

Your built in blowers (365CFM x 2 = 730CFM) are not powerful enough to move that much air thru that much duct work. Most furance blowers are 1500CFM.

There are ways to control the furance blower with a temp switch or an OPTIONAL contact that needs to be installed in teh CoalTrol if you are using that to control the stove.

I just have 2 - 8" ducts going upstairs using 2 stock blowers and a 3rd blower for the jacket (with temp switch), mine is home made and is basically sealed around the stove.

ijp66 · Post by **ijp66** » Tue. Mar. 03, 2009 8:51 am

WNY wrote:If you hook it into your furance cold air, you should unhook the factory blowers and just use the Furance blower to suck the heat from the stove into your duct work.

Also depends on your duct work, if you have it in the HOT AIR Side using the stock blowers, you need the Back Flow dampers to keep the hot air from flowing back thru you cold air ducts and wasting heat where you don't want it.

Your built in blowers (365CFM x 2 = 730CFM) are not powerful enough to move that much air thru that much duct work. Most furance blowers are 1500CFM.

There are ways to control the furance blower with a temp switch or an OPTIONAL contact that needs to be installed in teh CoalTrol if you are using that to control the stove.

I just have 2 - 8" ducts going upstairs using 2 stock blowers and a 3rd blower for the jacket (with temp switch), mine is home made and is basically sealed around the stove.

Ok so unhook the blowers on the Hyfire and turn on my fan from my oil furnace to move the hot air? So I can purchase an optional blower that will move the heat better?
Sorry I am totally new at this. Thanks for the help

ijp66 · Post by **ijp66** » Tue. Mar. 03, 2009 9:00 am

gambler wrote:
Do you mean am I using my oil furnace blower to move the hot air?
Yes that is what I am asking.
Also if you are using the FHA blower, all of the air is supplied by flowing through the hyfire?

I will have to check to see how it is hooked up. This may sound stupid but what is the FHA blower?
All of the hot air is being supplied by the Hyfire.
Thanks

gambler · Post by **gambler** » Tue. Mar. 03, 2009 10:56 am

This may sound stupid but what is the FHA blower?

No it is not stupid. FHA stands for Forced Hot Air meaning your furnace blower

ijp66 · Post by **ijp66** » Tue. Mar. 03, 2009 11:32 am

gambler wrote:
This may sound stupid but what is the FHA blower?
No it is not stupid. FHA stands for Forced Hot Air meaning your furnace blower

I guess you learn something new everyday. Thanks.

No I am not using my oil FHA. I just have it tied into my cold air return and don't use my FHA blower on my furnace.

WNY · Post by **WNY** » Tue. Mar. 03, 2009 11:43 am

No, you would use the Furance (Oil/gas) blower, you may have to rewire to be controlled from a Temp. Switch on the plenum or a relay that can control it from your Thermostat

Do you have a FAN switch on your FHA Thermostat that can control the blower separately? If not, you may have to have an HVAC guy help you.

Do you have the CoalTrol? If so, you would have to get the Optional Contacts Added for control of higher amp blowers. The built in Socket for Convection Blowers only is rated 2-3 Amps.

ijp66 · Post by **ijp66** » Tue. Mar. 03, 2009 1:20 pm

WNY wrote:No, you would use the Furance (Oil/gas) blower, you may have to rewire to be controlled from a Temp. Switch on the plenum or a relay that can control it from your Thermostat

Do you have a FAN switch on your FHA Thermostat that can control the blower separately? If not, you may have to have an HVAC guy help you.

Do you have the CoalTrol? If so, you would have to get the Optional Contacts Added for control of higher amp blowers. The built in Socket for Convection Blowers only is rated 2-3 Amps.

Thanks for all your help Dave. Thank God for this site.
I do have a control on my thermostat that can control my blower for my FHA seperatly.

I'm not sure what the "coal trol" is.

WNY · Post by **WNY** » Tue. Mar. 03, 2009 1:42 pm

How are you adjusting your Hyfire for temp and speed? Rheostats? or a black box with thermostat? (Possibly the CoalTrol).

http://www.automationcorrect.com is the CoalTrol control system for Coal Stoves.

ijp66 · Post by **ijp66** » Tue. Mar. 03, 2009 6:27 pm

WNY wrote:How are you adjusting your Hyfire for temp and speed? Rheostats? or a black box with thermostat? (Possibly the CoalTrol).

http://www.automationcorrect.com is the CoalTrol control system for Coal Stoves.

We are using the coal trol thermostat with the black box that came with the model.
I was looking over the diagram from the dealers website. which shows it being tied into the cold air return, then going through my oil furnace filter then through my furnace blower and out through the house.

I just removed my oil furnace filter and I cant even feel any air at all??

The 14" pipe that ties into my cold air duct is very warm.

Would it make sense to have the 14" duct tied into the hot air return instead of the cold air return and just turn on my oil furnace blower?

gambler · Post by **gambler** » Tue. Mar. 03, 2009 9:26 pm

[quote="ijp66
The 14" pipe that ties into my cold air duct is very warm.

Would it make sense to have the 14" duct tied into the hot air return instead of the cold air return and just turn on my oil furnace blower?[/quote]

Leave it hooked to the cold air return and block off the cold air return on the other side of the hyfire and turn your furnace blower on.
In other words turn on your furnace blower and make sure all of the cold air feeding it comes through the hot air jacket of the hyfire.
And remove the factory blowers from the hyfire.

If you hook the hyfire to the hot air duct and tun on your furnace blower it will blow air back through the hyfire and heat your basement only.

WNY · Post by **WNY** » Wed. Mar. 04, 2009 8:15 am

unless there was a back draft damper in your ductwork to prevent reverse flow, you should hook it to the cold air side, and use your furance blower to SUCK the warm air from the Hyfire into your ductwork.

The built in blowers on the Hyfire are probably not powerful enough to overcome the resistance in your ductwork/filter.

What it's doing is the flow is going all over in your ductwork by trying to push it from the Hyfire, it's probalby going the wrong way into your cold air return ducts, that is why they recommend using the furnace blower to suck the heat and cold air the correct way thru the duct work.