Twenty-nine water heaters are live here, 21 storage and 8 instant, and the quickest way to choose for an HDB bathroom is to look at what each listing includes. Seven of the 8 instant listings come with their own shower head or set; none of the 21 storage listings does. At $233.05 you can buy either type.
The short version
Go instant if you want the heater and the shower as one purchase: 7 of the 8 instant listings include a shower head or set, and prices start at $120.05. Go storage if you want the tank out of the way: 9 of the 21 storage listings print a mounting position, and 5 of those print concealed ceiling installation. $233.05 buys either.
29 heaters are live, and 3 of the instant ones sit under rain showers
| Type | Live listings | Where they are listed | Lowest price | Highest price |
|---|---|---|---|---|
| Storage | 21 (5 from 707, 16 from Ariston) | Water Heaters | $233.05, 707 DALTON 15 | $494.34, 707 CLOSE-UP 15 |
| Instant | 8 (5 from Ariston, 3 from 707) | 5 in Water Heaters, 3 in Rain Shower | $120.05, ARISTON AURES SB33 | $469.62, 707 KINGSTON |
29 live heater listings, censused 29-09-2026. /collections/water-heaters holds 31 = 26 active + 5 draft + 0 archived, and the 26 split 21 storage + 5 instant. /collections/rain-shower holds 154 = 136 active + 7 draft + 11 archived; 4 of them describe a built-in heater and 3 of those are active. 21 + 5 + 3 = 29.
Storage lives in one collection: 21 listings, 5 from 707 and 16 from Ariston. Instant is split. Five Ariston AURES models are in Water Heaters, and three 707 models, KINGSTON, PRINCETON and WELLINGTON, are sold as complete shower sets under Rain Shower. Browse Water Heaters alone and you see 5 instant options, not 8.
Why are some instant water heaters listed under rain showers?
Three of the 8 instant heaters are 707 shower sets with the heater built in: KINGSTON at $469.62, PRINCETON at $319.00 and WELLINGTON at $315.44, as at 29 September 2026. They are listed with rain showers, so the water heater collection on its own shows 5 instant models.
$233.05 buys either type here
| Listing | Type | Price as at 29-09-2026 | Lead features as printed |
|---|---|---|---|
| 707 DALTON 15 | Storage | $233.05 | 'Blue Enamel Coated Tank', 'Thermal Cut Off' |
| ARISTON AURES SMART ROUND RMC33 | Instant | $233.05 | 'Instant Heating, Constant Temperature', 'Anti scalding 2.0' |
Both listings read live 29-09-2026. The DALTON 15 is the lowest-priced of the 21 live storage heaters; the RMC33 is the third-lowest of the 8 live instant heaters. 21 + 8 = 29.
Same price, two ways to get hot water. For an HDB bathroom where the shower stays and you want hot water held ready in a tank, order the 707 DALTON 15 Storage Water Heater at $233.05 as at 29 September 2026. It is the lowest-priced storage heater of the 21 live, and its listing prints an enamel-coated steel tank and a thermal cut-off. If you would rather heat the water as it flows, the ARISTON AURES SMART ROUND RMC33 is the same $233.05 and prints constant temperature and Anti scalding 2.0.
What does the DALTON 15 print that the AURES SMART ROUND RMC33 does not?
The DALTON 15 prints a 'Blue Enamel Coated Tank', an enamel-coated incoloy heating element, 'Thermal Cut Off' and 'Whirlflow 2 Technology'. The AURES SMART ROUND RMC33 prints 'Instant Heating, Constant Temperature' and 'Anti scalding 2.0' instead. Both are $233.05 as at 29 September 2026.
Read three things off a heater listing: tank or flow, mounting, and whether a shower comes with it
| What to read | Storage (21 live) | Instant (8 live) |
|---|---|---|
| Tank or flow | 21 of 21 name a tank or storage in the title or description | 3 of 8 print a water flow rate: AURES SM33 SB, 707 KINGSTON, 707 WELLINGTON |
| Mounting position | 9 of 21 print one; 5 of those print concealed or counter-ceiling hidden installation | 1 of 8 prints unit dimensions: 707 KINGSTON, 215 x 390 x 104mm |
| Shower head or set included | 0 of 21 | 7 of 8, all but AURES SMART ROUND RMC33 |
| HDB named in the listing | 3 of 21 | 0 of 8 |
All 29 live heater descriptions read 29-09-2026: 21 storage + 8 instant = 29.
Tank size, heating power and heat-up time are compared in the storage heater heat-up guide. Instant heater power, water pressure and IP rating are in the instant shower heater guide.
Which storage water heaters say they fit an HDB bathroom?
Three Ariston listings say so in their own text: SL2 20 RS 2.5 SIN at $316.61, SL 30 2.5 SIN at $363.69 and SL2 30 LUX WIFI 2.5SIN at $429.61, as at 29 September 2026. Each describes a storage heater customised to fit the bathrooms in new condominiums and HDB flats.
Which storage water heaters can be hidden in the ceiling?
Five print it. PRO R S 30SHE SIN3 at $270.71, PRO R S 40SHE SIN3 at $288.37, PRO R S 56SHE SIN3 at $335.44 and PRO R S 100HE SIN3 at $466.09 print 'Suitable for concealed ceiling hidden installation', and PRO RS J 25 3.0SIN at $251.88 prints 'Suitable for counter-ceiling hidden installation'.
Instant starts under $200, storage starts at $233.05
| Price band | Instant | Storage | Lowest instant | Lowest storage |
|---|---|---|---|---|
| Under $200 | 2 | 0 | AURES SB33, $120.05 | - |
| $200 to $299.99 | 3 | 8 | AURES SMART ROUND RMC33, $233.05 | 707 DALTON 15, $233.05 |
| $300 to $449.99 | 2 | 10 | 707 WELLINGTON, $315.44 | PRO RS J 50 3.0SIN and AN2 30 RS 1.5 SIN, $307.20 |
| $450 and up | 1 | 3 | 707 KINGSTON, $469.62 | AN2 30 TOP WIFI 1.5 SIN, $456.68 |
All 29 live heaters by price, read 29-09-2026; prices can change and the product page carries the current figure. 29 = 2 + 11 + 12 + 4 = 8 instant + 21 storage.
18 of the 21 storage heaters sit between $200 and $449.99. Instant runs wider, from $120.05 on the AURES SB33 to $469.62 on the 707 KINGSTON shower set. The 707 DALTON 15 at $233.05 is the storage floor, with PRO RS J 25 3.0SIN at $251.88 and 707 DALTON 25 at $253.06 next.
What is the cheapest storage water heater?
The 707 DALTON 15 at $233.05 as at 29 September 2026. The next two are the ARISTON PRO RS J 25 3.0SIN at $251.88 and the 707 DALTON 25 at $253.06.
What is the cheapest instant water heater?
The ARISTON AURES SB33 at $120.05 as at 29 September 2026, followed by the AURES SM33 SB at $148.30. Both come with a three-spray shower.
Related guides
How heating power and tank size change heat-up time, instant shower heaters: power, pressure and IP rating and 707 and Ariston storage heaters side by side.