Sun Home Cold Plunge Pro Titan XL: what the documentation says
The largest plunge in Sun Home's integrated Pro range: 238 gallons with a built-in bench and a published minimum of 28 °F, on a standard wall plug. Here is what that means, and what is buyable instead.
The Titan XL sits at the top of Sun Home's Cold Plunge Pro range — the integrated, cabinet-style plunges with the chiller built in. We covered the range's documentation in our Cold Plunge Pro review; this page covers the Titan XL specifically, because its capacity and seating make it a different proposition for a larger or taller user.
What Sun Home publishes
| Pro Titan XL | Pro Apex | Pro | |
|---|---|---|---|
| Water capacity | 238 gallons | 180 gallons | 150 gallons |
| Minimum temperature | 28 °F | 28 °F | — |
| Sanitation | Ozone and UV | Ozone and UV | — |
| Seating | Built-in bench | — | — |
| Extras | Ice making (thick, floating ice); polar jet mode | — | — |
| Exterior / interior | Engineered walnut / marine-grade stainless steel | — | — |
| Mobility | Caster wheels | — | — |
| Electrical | Dedicated 15 A GFCI circuit, NEMA 5-15 (standard wall plug) | Dedicated 15 A GFCI circuit, NEMA 5-15 | — |
| Dimensions | Not captured | 71.5" × 30.75" × 60.5" | — |
| Weight | Not captured | 528 lb | — |
| Environment | Indoor and outdoor | Indoor and outdoor | — |
The Pro's 150-gallon figure is from Sun Home's Titan page, which compares the two. Dashes mean we did not read that figure on the pages we checked, not that it does not exist. Figures read on 2026-09-11.
What the specification means
238 gallons with a bench. That is a lot of water — about 1,980 pounds of it at roughly 8.3 pounds per gallon, before the cabinet — and it buys room: a built-in seat and depth for a larger user. It also means the floor matters indoors: water weight concentrated on a small footprint is a question for building management or an engineer on an upper floor. For fit, our tall-user plunge page shows how to measure.
28 °F on a standard plug. A published minimum below freezing, with ice-making, from a 15 A GFCI circuit on a normal wall outlet is a notable combination — most marketplace chillers publish floors between 37 and 42 °F. Whether you want water that cold is a separate question; the temperature guide covers what studies actually used.
Integration. Chiller, ozone and UV sanitation in one cabinet removes the hoses, fittings and separate boxes of a kit — the leak points we discuss in drop-in vs external chillers. The trade-off is that the whole unit is one appliance: if the chiller needs service, so does your plunge.
What we could not verify
- The Titan XL's own dimensions and weight — published for the Apex on the pages we read, not captured for the Titan.
- Chiller capacity in HP, BTU or watts, and pull-down time from a stated starting temperature.
- Measured power draw for running-cost arithmetic.
- Interior dimensions — the figure that decides fit for a tall user.
- A first-party Amazon listing. Sun Home sells direct.
Alternatives you can buy today
Integrated and bundled plunges on Amazon reach the same idea at smaller capacities and warmer floors. They are not Sun Home products, and none of them publish a sub-freezing minimum. One is a one-piece molded tub with the chiller built in — the closest in design — and one publishes a pull-down time, which the Titan's pages do not.
Integrated and bundled alternatives on Amazon
Duthss 1-Person All-in-One Cold Plunge, 1 HP Chiller, 400 L
Duthss
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Chiller, circulation and filtration built into a one-piece insulated shell — no external hoses — which is the design premium integrated plunges sell.
| Capacity | 400 L (about 106 gallons) |
|---|---|
| Shell | One-piece molded PE with PU insulation |
| Chiller | Built-in 1 HP, up to 2,100 W cooling output |
| Temperature range | About 37.4–104 °F |
| Dimensions | 60" × 30.5" × 26" |
| Supply | 110 V |
What works
- No exposed hoses or fittings to leak
- Seamless molded shell
- Heats as well as cools
What doesn't
- If the chiller fails, the plunge is out of service
- One-person interior
- Power draw not published separately
Skip it ifyou want to replace the chiller independently of the tub.
AS ColdPlunge 1/3 HP Chiller with 100 Gallon Tub Kit
AS ColdPlunge
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Buying the tub and the chiller as a matched pair removes the single most common beginner mistake: pairing a small chiller with a tub it can never cool.
| Cooling capacity | 1/3 HP |
|---|---|
| Tub volume | 100 gallons |
| Minimum temperature | 42 °F |
| Tub shape | XL insulated round |
| Pump and filter | Built in |
| Sizing | Matched pair |
What works
- Chiller is sized to the tub it ships with — no sizing arithmetic required
- An insulated tub reduces the chiller's duty cycle and your power bill
- One purchase, one delivery, one warranty conversation
What doesn't
- 1/3 HP against 100 gallons is a long first pull-down
- Round tubs suit sitting, not lying
- Bundle pricing rarely beats buying the two parts separately on sale
Skip it ifyou already own a tub. You would be paying for a second one, and a bare chiller costs materially less.
JUGRFIT 121-Gallon Cold Plunge Tub with 1,050 W Chiller
JUGRFIT
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Everything in one box, down to a GFCI-protected plug, with drop-stitch walls far firmer than an ordinary inflatable.
| Tub | 121 gallons, drop-stitch |
|---|---|
| Dimensions | 53" × 32" × 24" |
| Chiller | 1,050 W cooling, to 37 °F |
| Weather rating | Chiller IPX4 |
| Included | Lid, chiller with filter and pump, hoses, valves, GFCI plug |
What works
- GFCI plug included
- Firm drop-stitch walls
- Outdoor-rated chiller
What doesn't
- Still an inflatable — seams wear
- Hoses are connections that can leak
- The seller's running-cost estimate is its own, not verified by us
Skip it ifthe plunge is a permanent installation. A rigid tub will outlast it.
Diveblast Cold Plunge Tub with 2/3 HP Chiller
Diveblast
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The only listing in this category that publishes an actual pull-down window with its starting temperature. That one honest number is worth more than every 'powerful cooling' claim on the page.
| Cooling capacity | 2/3 HP |
|---|---|
| Minimum temperature | 39 °F |
| Pull-down | 90 °F to 39 °F in 3–9 hours (manufacturer's figure) |
| Pump | Included |
| Filtration | Included |
| Power consumption | Described as low; no figure published |
What works
- Publishes a pull-down range with a named start temperature — almost unique here
- 2/3 HP splits the difference between the 1/3 HP and 1 HP tiers
- Tub, chiller, pump and filter as one system
What doesn't
- A three-to-nine-hour range is very wide and the variables behind it are not stated
- 'Low consumption' with no wattage is not a spec
- A bundled tub means no choice of tub geometry
Skip it ifyou need a specific tub shape. This is sold as a system, and the tub is not the part you would have chosen.
Our honest position
The Titan XL's case is capacity, seating, a sub-freezing floor and a finished cabinet on an ordinary outlet — a genuinely different product from a tub-and-chiller kit. What its pages did not give us is the chiller capacity and power draw, which are the numbers we would want before committing. Ask Sun Home for both. If you want one, buy it direct; we earn nothing either way.
Questions people actually ask
How big is the Sun Home Titan XL?
How cold does the Sun Home Titan XL get?
What electrical supply does the Titan XL need?
Is the Sun Home Titan XL sold on Amazon?
Sources
- Sun Home Saunas — Cold Plunge Pro Titan XL product page, published specifications — checked Sep 11, 2026
- Sun Home Saunas — Cold Plunge Pro Apex product page, published specifications — checked Sep 11, 2026
- NIST Chemistry WebBook — density of water, for the weight figure — checked Sep 11, 2026
- Amazon.com — cold plunge tubs sold with chillers, for the alternatives — checked Sep 11, 2026
Read next
- Sun Home Cold Plunge Pro reviewThe rest of the Pro range.Read it
- Best cold plunge tubs for tall usersWhere capacity and seating matter.Read it
- Drop-in vs external chillerWhy integration removes leak points.Read it
- Best 2-person cold plungesIf more than one of you plunges.Read it
- Sun Home vs PlungeThe two brands compared.Read it
- Sun Home Pro vs Apex vs Titan XLAgainst the smaller two.Read it
Every pick on this page comes from published specifications, not from hardware we own. Read how we pick — including what spec-led ranking cannot tell you.