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Heating System Additive

06/19/2016 9:07 AM

Anybody familiar with Thermoboost?

My son had a new boiler fitted, and the guy was singing the praises. He said it worked by lowering the specific heat of the water, and had seen a test where equal volumes of water and water + additive were heated at same rate. The one with got to 33°C, while the water only reached 25°. Then when taken off the heat, the water cooled to 20°, while the other only cooled to 30°. (that was odd for a start, I expected him to say the one with additive cooled quicker, as you’d expect if the heat capacity was lower). He said it saves 30% on heating costs.

I found the website http://thermoboost.com/ , it claims 20% saving, but says nothing about how the stuff is supposed to work. I don’t think it’s possible to alter the specific heat of water by an additive. If the additive has lower specific heat it would reduce that of the mixture, but only in proportion, and as the dose rate is 1% of system volume it makes negligible difference even if specific heat of additive is zero. With lower specific heat the liquid would warm up quicker, but also cool quicker, so even if it’s true, it’s not clear to me how it would improve system efficiency.

You can only get out of the rads the heat that goes in from the fuel, and since modern boilers are >90% efficiency saving 20% looks unlikely to say the least. If some of the rads are blocked with sludge maybe the house isn’t heated adequately, but provided the boiler is OK the cost per BTU or kJ into the rooms doesn’t change. The total cost could be lower, but with a cooler house.

So all-in-all I’m sceptical, but interested in others’ comments.

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#1

Re: Heating system additive

06/19/2016 10:18 AM

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#2
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Re: Heating system additive

06/19/2016 10:53 AM

My thoughts exactly!

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#3

Re: Heating system additive

06/19/2016 11:18 AM

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#4

Re: Heating system additive

06/19/2016 11:33 AM

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#5

Re: Heating system additive

06/19/2016 11:46 AM

What sort of consumer protections do you have over there?

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#6

Re: Heating system additive

06/19/2016 12:03 PM

Ideally, for a medium of heat, as for this instance, the water(steam), it should be able to carry high heat at a low volume and also transfer that amount of heat speedily to a low heat temperature sink. High thermal conductors behave that way, with high heat capacities, of course.

Adding some chemical agent to water is trying to improve its heat capacity per volume. So it is expected, water would be heated easily and also cooled easily with the additive in it.

Your statement below deserves a second look.

"With lower specific heat the liquid would warm up quicker, but also cool quicker"

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#7
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Re: Heating system additive

06/19/2016 1:23 PM

Ref: http://www.reuk.co.uk/Heat-Transfer-Fluid-in-Solar-Water-Heating.htm

"Specific Heat Capacity

Different fluids have different specific heat capacities - the measure of the heat energy required to raise the temperature of a given unit amount of fluid by a given temperature. Specific heat capacities in the UK are typically given in British Thermal Units (BTU) per pound degrees Farenheit (BTU / (lb.F)). One BTU will raise the temperature of 1 pound of water by 1 degree Farenheit at 68 degrees Farenheit. The international unit for specific heat capacity is joules per gram Kelvin J/(g.K).
The specific heat capacity of plain water at 20 degrees Celcius is 4.2 J/(g.K) which is high relative to most other common liquids - for example antifreeze which is commonly used as a heat transfer fluid in solar water heating systems in colder climates has a specific heat capacity of 4.0 J/(g.K). Olive oil for example has a specific heat capacity of just 1.97 J/(g.K), which is higher than in most oils which all have a low specific heat capacity.
When choosing a heat transfer fluid, a high value of specific heat capacity is essential since the higher the value, the more energy the fluid will carry with a raise in temperature, and the more efficient the installed system will be."

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#12
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Re: Heating system additive

06/19/2016 10:25 PM

good answer points for copying Wiki??????????????????

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#13
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Re: Heating system additive

06/19/2016 11:08 PM

Nothing's more obnoxious than an anonymous poster with an attitude.

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#15
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Re: Heating system additive

06/20/2016 2:43 AM

Correct!!

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#16
In reply to #13

Re: Heating system additive

06/20/2016 12:58 PM

Yeah, all snarky anon posters need to be slapped in the face!

*SLAP!*

Hey, why's you slap ME? You say I was being a snarky anon just now? Why you .... darnit, you're right; I did fit the description, and therefore deserved that.

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#18
In reply to #13

Re: Heating system additive

06/21/2016 2:54 AM

That's complete bollox.

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#19
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Re: Heating system additive

06/21/2016 3:22 AM

GA. Good post.

Now we have 3 of them here.....you are "attracting" them!!!

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#20
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Re: Heating system additive

06/27/2016 10:08 AM

Well, at least SOMEONE thinks that Lyn is attractive.

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#21
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Re: Heating system additive

06/27/2016 12:46 PM

How true!!

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#14
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Re: Heating system additive

06/20/2016 2:42 AM

I do not see a problem, as long as the source is quoted, and if I post from say Wiki, I also usually mark it in bold as well......

I don't think that any (normal) CR4 member, expects to have only "original" quotes as answers, as though we all have everything "onboard" so to say......I cannot remember "everything" as my name is not Sheldon Cooper!!

It appears that you are the one with the problems Sheldon!!! And that is not a "Theory" either!!!!

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#22
In reply to #7

Re: Heating system additive

06/29/2016 11:47 AM

Just got back from holiday and see there's a few more posts.

As you say water has an anomalously high specific heat (as well as some other unexpected properties). While high specific heat means lower liquid flow for a given heat transfer rate, giving lower pumping costs, I can't see why it would give better transfer efficiency.

I wondered if the manufacturer might have said something crafty like it reduces heat losses by 20%, i.e. without it efficiency = say 90%, 10% loss, with it loss reduced to 8%, efficiency up to 92%. But rechecking the website it says heating bills reduced by (up to) 20%. So I still think it's a non-starter.

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#23
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Re: Heating system additive

06/29/2016 2:27 PM

I think its a starter, as a scam!!

My only indirect experience in this area, was in 1988 I needed a cheap car, diesel if possible and I bought a Mitsubishi 2.3l Turbo diesel, with most of the engine in the trunk!!!

It had a warped head, with cracks between the valves, due, I was told, to having been filled up in Japan with a very (far too) high concentration of anti frost, than was ever needed and the anti frost simply could not "transport" the heat away fast enough and after 2 years, the alu head was useless. Also, the head design was not good (I was told!).

I bought the car VERY cheaply and found a good head from a crashed newer car, which I renovated (my first Diesel!) and we did over 300,000 Kms over the next 5 years..... Went all over Europe towing a trailer......Great car and every economical......

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#24
In reply to #22

Re: Heating system additive

07/01/2016 1:41 PM

"it says heating bills reduced by (up to) 20%."

And they're not wrong, reduced by 0% (or less, meaning an increased bill) does fit in the range of 'up to 20%.' They defined the top limit, but not the bottom.

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#25
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Re: Heating system additive

07/02/2016 10:40 AM

That's right, typical "weasel words". But they're clearly trying to give the impression the reduction is in the region of 20%, not -1 to 1%! I don't know whether this sort of thing has been argued in court, but I doubt they'd get away with saying 1% is in line with the claimed performance.

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#26
In reply to #25

Re: Heating system additive

07/05/2016 9:34 AM

Exactly, the whole field of Marketing can be boiled down to 'preying on victims with poor/no critical thinking skills.'

And what have all the changes made to the US educational system over the past few decade been accomplishing? I significant reduction in critical thinking skills by the students, reducing them from 'humans' to 'sheeple.' We've got politicians and salesmen controlling the curriculum in schools, instead of scientists and educators, the people who should KNOW What is Most Important in Life(1).

Notes:

  1. What is Most Important in Life, critical thinking skills, is unrelated to What is Best in Life, which is 'crush your enemies, see them driven before you, and hear the lamentations of their women.'
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#8

Re: Heating System Additive

06/19/2016 4:12 PM

No MSDS (Material Safety Data Sheet) on the product so it's probably similar to the radiator wetting agents that are sold for use in your car. Read this article for more info, and note the comments about straight water; also note the quantities involved, a half liter of your stuff is nothing in a 100 liter or more hot water system.

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#9

Re: Heating System Additive

06/19/2016 6:48 PM

This is total bull....anything that improved efficiency that much would make headlines around the world...and be required in every boiler....that would have to include it being possible, which it is not...because you would have greater than 100% efficiency...anybody knows that 100% efficiency is as good as it gets, and electric furnaces are 100% efficient because all the heat is absorbed....gas furnaces are now greater than 90% efficient because you have to exhaust some of the heat out the stack to get rid of fumes....You can't get more heat out of the water than you put in, or you would have perpetual motion machines everywhere....

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#10
In reply to #9

Re: Heating System Additive

06/19/2016 7:43 PM

See above #8.

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#11
In reply to #10

Re: Heating System Additive

06/19/2016 10:19 PM

The engineering of this piece of equipment takes into account the heat transfer characteristics of the materials...altering that changes the balance that is achieved by the design and could lead to unintended consequences....follow the manufacturers recommendations...

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#17

Re: Heating System Additive

06/20/2016 4:18 PM

I love your pic Solareagle! In particular the way you get the dwell time!

(GA for that.) I always marvel at the simplicity in genius, thank you. jt.

A man goes to a shrink and says, "Doctor, my wife is unfaithful to me."

"Every evening, she goes to Larry's bar and picks up men.
In fact, she sleeps with anybody who asks her! I'm going crazy.
What do you think I should do?"

"Relax," says the Doctor, "take a deep breath and calm down.
Now, tell me, exactly where is Larry's bar?"

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