h a l f b a k e r yKeep out of reach of children.
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This idea may not be sufficiently original to be
worthy of a separate posting.
There are several "bath heating" ideas on the HB.
One proposes integrated electric elements, another
an external recirculating heater. There are also the
"vacuum" and "thermos" bath ideas.
The BorgCo heated
bath employs energy
transferred from a circulating hot water central
heating system.
The bath is a double-wall design. In the space
between the walls is a copper coil, fixed to the
outer shell, and connected to the central heating
circuit. The void is filled with an inert oil. The
thermostat is in the oil. Stirring may be necessary;
since the oil is electrically insulating, an open-frame
synchronous motor can be safely immersed, much
like the motor in a heatpump.
The bather sets the temperature and then fills the
bath with water. The control is a waterproof
handheld device using infra-red, or RF may be
better.
There are the usual overtemperature safety
devices.
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Description (displayed with the short name and URL.)
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This is a device that's a shunt from in-floor water heating ? |
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Tell us, what part of "energy transferred from a circulating hot water central heating system" didn't you understand ? We ask merely for information. |
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// Disappointing coming from you.. // |
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They're there. Doesn't mean they work. It's just some stupid stuff the lawyers wanted put in. |
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//energy transferred from a circulating hot water central
heating system// |
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Well, that could just mean turning on the tap. It still could
count as “circulating”, ’cause, you know, the water cycle
and all. |
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//overtemperature safety devices// sp. "overtemperature capability devices". |
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//what part of . . . didn't you understand// Well, apart from reading a suboptimally placed semi-colon as a comma... |
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The part where you have it confused with a 'still or electric-radiator and start blathering on about "copper coils" and "inert oil". Why not just run directly from the in-floor, bypassing the need for a separate pump, and use metal fins to spread the heat out on the inner wall. |
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// the need for a separate pump // |
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There is no separate pump. |
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"There never was any separate pump ..." |
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There MIGHT be a stirrer. A stirrer is not the same as a pump. |
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// use metal fins to spread the heat out on the inner wall // |
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The oil provides thermal hysteresis, and even heating. The circulating water could be 60C or hotter; coupling that directly to the bath would be a Bad Thing. |
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The most intriguing concept put forth in this idea is the
notion that the Borg retain legal counsel. |
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Not to mention the fact that the Borg take baths -
who knew? I wonder if they have little Borg ducks? |
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Of course they retain legal counsel! |
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(What they mean by "retain" might be guessed from the fact that they're baiting a hot tub with //safety devices// of questionable functionality) |
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legal council... borg... seems like a tautology in some
way. |
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Why not fill the void between the shells with... water! |
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The thermostat is in the water between the shells, but
instead of opening and closing a water valve, it turns on
and off a small pump (not in your original design). |
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This small pump pulls water from the lowest (coolest)
point between the shells, sends some of it through a
tempering valve (where it mixes with hot water from
the central heating circuit), and sends the remainder
back to the central heater. |
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The water from the tempering valve goes back into
space between the shells, entering at the highest point. |
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The motor driving the pump isn't submerged in water,
but nevertheless should be watertight, electrically
insulated, and GFCI protected. Just to satisfy the
lawyers, mind you. |
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Naturally, both the thermostat switch, and the
tempering valve (thermostat valve) could be adjusted
by remote control. |
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The tempering valve's set point would be kept a couple
degrees above the temperature at which the thermostat
turns the pump off. |
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Bigsleep: Towel bars! Alas, they are already baked. A
bed! That's baked too, drat. A water bed? Hmm... |
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