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Author Topic: Replacing Sequoyah E3400 with CB Classic Edge 750 HD  (Read 242 times)

bjp

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Replacing Sequoyah E3400 with CB Classic Edge 750 HD
« on: May 06, 2019, 09:54:30 AM »

Hi all, new poster here.

A week from today, I have a Central Boiler Classic Edge 750 Titanium HD arriving for install here in zone 4.  I'm looking for any tips from experienced owners here about things to watch out for or be aware of during install that may not be obvious.

I'm replacing a Sequoyah Paradise E3400 that met an untimely end, already hauled away.  The CB will be going on top of the slab the Sequoyah used and the cheap drain tile open-cell wrapped underground pex lines are coming out and getting replaced with thermopex.  The pex lines will come in to the existing plate heat exchanger, unless it looks clogged up, to transfer heat to the rest of the hydronics (oil boiler, under floor and in-slab radiant, baseboards, and indirect hot water).  Planning to fill it up with treatment immediately, then water, and fire it up and send in all water tests.

Any install-time gotchas out there?  For example, once I bought this house with the Sequoyah I read that it would have dumped far less creosote into the damper and draft inducer if it had been initially tilted up a couple inches on the rear side.
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Roger2561

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Re: Replacing Sequoyah E3400 with CB Classic Edge 750 HD
« Reply #1 on: May 08, 2019, 05:39:25 PM »

Hi all, new poster here.

A week from today, I have a Central Boiler Classic Edge 750 Titanium HD arriving for install here in zone 4.  I'm looking for any tips from experienced owners here about things to watch out for or be aware of during install that may not be obvious.

I'm replacing a Sequoyah Paradise E3400 that met an untimely end, already hauled away.  The CB will be going on top of the slab the Sequoyah used and the cheap drain tile open-cell wrapped underground pex lines are coming out and getting replaced with thermopex.  The pex lines will come in to the existing plate heat exchanger, unless it looks clogged up, to transfer heat to the rest of the hydronics (oil boiler, under floor and in-slab radiant, baseboards, and indirect hot water).  Planning to fill it up with treatment immediately, then water, and fire it up and send in all water tests.

Any install-time gotchas out there?  For example, once I bought this house with the Sequoyah I read that it would have dumped far less creosote into the damper and draft inducer if it had been initially tilted up a couple inches on the rear side.

bjp - I do not have the Edge 750, I have the Edge 550 but I believe their operation is essentially the same.  You made the smart move by removing the crappy wrap stuff and replacing it with Thermopex.  I've had the same thermopex in the ground for the past 8 winters, I lose around 2 degrees over the 100 foot run.  I run mine hot, around 190/195 due to having baseboard heat in my house.  As for install, keep it level.  Also, the manual will show examples of how to install your OWB for your application.  Do yourself a huge favor and read the manual until you understand what 750 needs.  The most important thing I can pass along is to be sure your wood is dry, probably no more than 25% moisture.  Put enough wood in the firebox for a 12 hour period, it will operate more efficiently that way.  The one thing you'll absolutely love is the wifi connection, it's great being able to monitor it from your cell phone or computer, wherever there is a wifi connection.  boilerman has the titanium 750 HD also.  I haven't seen him on here in awhile, be patient he will and he'll be happy to answer any questions you have.  Roger     
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bjp

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Re: Replacing Sequoyah E3400 with CB Classic Edge 750 HD
« Reply #2 on: May 09, 2019, 12:32:59 PM »

bjp - I do not have the Edge 750, I have the Edge 550 but I believe their operation is essentially the same.  You made the smart move by removing the crappy wrap stuff and replacing it with Thermopex.  I've had the same thermopex in the ground for the past 8 winters, I lose around 2 degrees over the 100 foot run.  I run mine hot, around 190/195 due to having baseboard heat in my house.  As for install, keep it level.  Also, the manual will show examples of how to install your OWB for your application.  Do yourself a huge favor and read the manual until you understand what 750 needs.  The most important thing I can pass along is to be sure your wood is dry, probably no more than 25% moisture.  Put enough wood in the firebox for a 12 hour period, it will operate more efficiently that way.  The one thing you'll absolutely love is the wifi connection, it's great being able to monitor it from your cell phone or computer, wherever there is a wifi connection.  boilerman has the titanium 750 HD also.  I haven't seen him on here in awhile, be patient he will and he'll be happy to answer any questions you have.  Roger   

Thank you for the tips, Roger!  It was an easy choice to remove the old wrapped pipe given that it has been leaking groundwater into the basement for about 6 months. I surprisingly had hardly any heat loss with the old pipe, at least until the pipe and wrap waterlogged.  Then it was all over. I've been watching a ton of videos on the 750 and I'm loving the idea of loading the firebox for a 12hr burn - the Sequoyah manual said essentially to load it up packed full every single time, a huge difference from the 1/4 - 1/3rd full fireboxes I'm seeing in videos from CB. Access to clean all the gritty parts is going to be great, too, after what I had before.

I'm going to focus hard on keeping wood dry.  My woodshed is slowly collapsing to the point snow blows in through the walls so I'm going to have to get that dealt with.
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Roger2561

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Re: Replacing Sequoyah E3400 with CB Classic Edge 750 HD
« Reply #3 on: May 09, 2019, 05:31:23 PM »

The one other thing I should have mentioned is, size does make a difference; the firewood pieces should not be too large.  I toss in pieces that are around 4 to 8 inches in diameter, smaller than 4 inches is okay but you don't want to go larger than 8 inches.  I meant to ask, does the Edge 750 have the titanium stainless steel firebox or is it the carbon steel firebox?  Roger 
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bjp

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Re: Replacing Sequoyah E3400 with CB Classic Edge 750 HD
« Reply #4 on: May 10, 2019, 12:22:21 PM »

The one other thing I should have mentioned is, size does make a difference; the firewood pieces should not be too large.  I toss in pieces that are around 4 to 8 inches in diameter, smaller than 4 inches is okay but you don't want to go larger than 8 inches.  I meant to ask, does the Edge 750 have the titanium stainless steel firebox or is it the carbon steel firebox?  Roger

I won't be 100% positive until Monday when it actually arrives, but all the paperwork says 'titanium HD' so this should be the titanium stainless firebox and the dealer will have a problem if it isn't.  I'm probably more interested in the access doors than the stainless firebox since I don't have much experience with them yet.

That's much more thoroughly split wood than I used with the Sequoyah.  It'll make loading go more easily vs hefting some of the monsters I burned in that thing.
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Roger2561

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Re: Replacing Sequoyah E3400 with CB Classic Edge 750 HD
« Reply #5 on: May 12, 2019, 10:19:51 AM »

The smaller pieces allow for a quicker fire recovery after it's been idling for a bit plus it'll help cut down on the creosote build up.  I don't know if your old Sequoyah has it, but get familiar with the pulse feature on the 750.  If you're not familiar with it, it's used to help keep the coals from dieing during the idling time.  You can set the duration of how long it runs and how much time between pulses (max is 50 seconds).  I set my pulse to turn on for 50 seconds every 10 to 12 minutes.   
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JD Tractor 4500 4X4 with front-end loader
JD LX277AWS
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Cud Cadet 27 Ton Wood splitter
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New Hampshire

bjp

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Re: Replacing Sequoyah E3400 with CB Classic Edge 750 HD
« Reply #6 on: May 13, 2019, 02:37:56 PM »

Arrived today and confirmed Edge 750 Titanium with the stainless firebox, manufactured January 2019. My excavator guy didn't show so a bit delayed on getting it hooked up, but wow this thing looks good. Lots of reading to do, I'll get to know the pulse since that will be a new feature for me here.
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