Happy HolidaySs Giveaway - Winners Re-Re-Re-Re-Drawn - 24 hours to Claim!

Get your HBT Growlers, Shirts and Membership before the Rush!


Home Brew Forums > Home Brewing Beer > DIY Projects > Other > Tankless water heater for fly sparging?
Reply
 
LinkBack Thread Tools
Old 12-06-2012, 10:25 AM   #31
MaxOut
Feedback Score: 1 reviews
Recipes 
 
Join Date: Jan 2011
Location: Hughesville, Maryland
Posts: 727
Liked 61 Times on 43 Posts
Likes Given: 2

Default

Quote:
Originally Posted by rico567
The capacity of a tankless heater that's significant is the temperature RISE: the amount it can raise the inlet water by the time it gets to the outlet, since the water just makes a pass through the heater, never sits in a tank. Ours is 95F, which is the best we've ever had (we've had 3 since 1977, one made in Britain one French, and this one's a Bosch Aquastar.....all propane. Since we're in the country, on well water that runs 55F year around, the math isn't difficult....but. The "but" is that these things are temperature limited. Given the performance of the heater, one would think it'd do 150F, but it's actually 140F. Why 140? Several reasons; first, that is the magic temperature at which hot water burns skin, second, the more you heat the less efficient things become, third, any and all household work can be done with water that hot, and these are designed as household heaters. You will not reach the magic sparge temp of 170F with any tankless heater I know of.
Your very wrong...with all due respect. Mine does it right out the box.
MaxOut is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2012, 04:59 PM   #32
barryfine
Feedback Score: 1 reviews
Recipes 
 
Join Date: Apr 2012
Location: Harrisburg, PA
Posts: 138
Liked 6 Times on 3 Posts
Likes Given: 6

Default

Quote:
Originally Posted by DrPhilGood View Post
Why do you not expect to directly fly sparge? You think you won't hit 170? If you add a ball valve to the output you should be able to adjust the flow rate to the proper rate no?
I'm worried that even with the over temp sensor it might cut off at 165. I'm also concerned that the flow might be too slow at that temp. I'm certainly hoping I can sparge directly from it, but I don't want to get my hopes up. I'll test it this weekend and report back my results.

edit: I just got the overtemp sensor and it's set to 85C, so it won't cut of until 185F!
__________________
barryfine is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2012, 05:04 PM   #33
Monster Mash
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2006
Location: Castaic, CA
Posts: 1,322
Liked 86 Times on 67 Posts
Likes Given: 12

Default

I have considered a tankless heater but I like to acidify my sparge water when doing pale beers, a tankless heater makes it almost impossible to make any adjustments to your water.

__________________
My 1BBL Brewery Pics
Monster Mash is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2012, 05:05 PM   #34
humann_brewing
More Humann than human
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
humann_brewing's Avatar
Recipes 
 
Join Date: Oct 2008
Location: the sun
Posts: 15,727
Liked 313 Times on 311 Posts
Likes Given: 21

Default

I saw another thread about using a tankless to speed up the strike water heat time and could obviously be used for sparging too minus the 20 minute safety thing which wouldn't be too bad as long as it could be turned on again within a minute or so.

My only concern is that I adjust my water so I don't want it coming straight from the hose but I don't see why you couldn't build a reserve tank elevated above the tankless to give it a little pressure just not sure if it would be enough.

__________________
humann_brewing is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2012, 05:07 PM   #35
humann_brewing
More Humann than human
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
humann_brewing's Avatar
Recipes 
 
Join Date: Oct 2008
Location: the sun
Posts: 15,727
Liked 313 Times on 311 Posts
Likes Given: 21

Default

Quote:
Originally Posted by Monster Mash View Post
I have considered a tankless heater but I like to acidify my sparge water when doing pale beers, a tankless heater makes it almost impossible to make any adjustments to your water.
I am wondering if there is a way around this, see reply above the only restriction is I think the heater would need more pressure on the inlet
__________________
humann_brewing is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2012, 05:17 PM   #36
barryfine
Feedback Score: 1 reviews
Recipes 
 
Join Date: Apr 2012
Location: Harrisburg, PA
Posts: 138
Liked 6 Times on 3 Posts
Likes Given: 6

Default

Quote:
Originally Posted by Monster Mash View Post
I have considered a tankless heater but I like to acidify my sparge water when doing pale beers, a tankless heater makes it almost impossible to make any adjustments to your water.
You could just fill your HLT with the hot water, acidify and then sparge. You would still save a ton of time waiting for your HLT to warm up.
__________________
barryfine is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2012, 05:21 PM   #37
Monster Mash
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2006
Location: Castaic, CA
Posts: 1,322
Liked 86 Times on 67 Posts
Likes Given: 12

Default

Quote:
Originally Posted by barryfine View Post
You could just fill your HLT with the hot water, acidify and then sparge. You would still save a ton of time waiting for your HLT to warm up.
I ended up automating my HLT so it starts heating 2hrs before I wake up. It was much cheaper then going tankless and allows for water adjustments while the water is cool.
__________________
My 1BBL Brewery Pics
Monster Mash is offline
 
Reply With Quote Quick reply to this message
Old 12-06-2012, 05:30 PM   #38
barryfine
Feedback Score: 1 reviews
Recipes 
 
Join Date: Apr 2012
Location: Harrisburg, PA
Posts: 138
Liked 6 Times on 3 Posts
Likes Given: 6

Default

Quote:
Originally Posted by Monster Mash View Post
I ended up automating my HLT so it starts heating 2hrs before I wake up. It was much cheaper then going tankless and allows for water adjustments while the water is cool.
Nice! That's a good solution too.
__________________
barryfine is offline
 
Reply With Quote Quick reply to this message
Old 12-07-2012, 12:13 AM   #39
humann_brewing
More Humann than human
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
humann_brewing's Avatar
Recipes 
 
Join Date: Oct 2008
Location: the sun
Posts: 15,727
Liked 313 Times on 311 Posts
Likes Given: 21

Default

Quote:
Originally Posted by Monster Mash View Post
I ended up automating my HLT so it starts heating 2hrs before I wake up. It was much cheaper then going tankless and allows for water adjustments while the water is cool.
I am thinking of this method, how did you go about doing that?
__________________
humann_brewing is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
water heater hot water tank? Pimp Juice Equipment/Sanitation 10 10-23-2011 07:37 AM
Tankless Water Heater for Sparge water? passedpawn Equipment/Sanitation 38 06-07-2010 04:32 PM
Water Heater batfishdog37 Equipment/Sanitation 7 04-02-2009 10:21 PM
RV Water Heater? bitterman35 Equipment/Sanitation 8 07-06-2008 10:22 PM
Lets talk tankless water heaters Germey General Chit Chat 24 06-03-2008 10:18 PM



Newest Threads

LATEST SPONSOR DEALS