Storage water heaters aren't a spec sheet most people read closely until the old one fails and they're ordering under time pressure. If you're comparing brands in the catalogue, tank size, warranty length and price are the numbers that actually matter. Here's how 707 and Ariston stack up on real listings.
Tank size: match it to your household, not your budget
707's Kensington+ line comes in 25L and 35L storage tanks, at $270.00 and $285.00. The Kensington+ 25L suits a single bathroom with light to moderate use; the 35L is built for a household running multiple showers back to back. Ariston's Andris Lux 30 is a 30-litre tank on a 1.5kW element. Going too small for your household means running out of hot water mid-shower. Going too large just means paying to heat water you don't use.
What tank size do I need for an HDB bathroom?
A 15-25L tank suits a single bathroom with light to moderate use. A 35L tank suits a household running showers back to back. Read the tank size off the listing and match it to your own household: the Kensington+ is 25L at $270.00 and 35L at $285.00.
Warranty: check what's actually covered
707's line (Kensington+, Dalton, Close-Up) carries a 10-year warranty on the tank, plus separate 2-year warranties on service and parts. That's the detail worth reading past the headline number, since "10 year warranty" often means tank-only, with parts and labour on a shorter clock.
Price comparison
| Model | Tank | Tank warranty | Price |
|---|---|---|---|
| 707 Dalton 15 | 15L | 10 years | $233.05 |
| 707 Dalton 25 | 25L | 10 years | $253.06 |
| 707 Kensington+ 25L | 25L | 10 years | $270.00 |
| 707 Kensington+ 35L | 35L | 10 years | $285.00 |
| Ariston Andris Lux 30 | 30L | See product listing | $363.69 |
Note: the '1,5KW' in the Andris Lux 30's listing title is its heating power. The 30 is the tank size in litres; Ariston's Singapore catalogue lists the model's code, 3100564, as 30 litres at 1500W.
Does the water heater price include installation?
No. Neither 707 nor Ariston's listed prices include installation on ThatRenoStore's catalogue. Factor installation in separately when budgeting.
What else to check before ordering
707's Dalton line is IPX4-rated for splash protection; its Close-Up line is IP24. Match the rating to where the unit will actually be installed. Neither brand's listed price includes installation, so factor that in separately. Heating element material also varies: copper on 707's Close-Up line, enamel-coated incoloy on Kensington and Dalton. Both resist corrosion, but the material affects lifespan and price differently.
Working out the right tank size for your household? The full Water Heaters collection lists tank sizes, warranty terms and price on every listing, or check Plumbing Fittings & Valves if you also need connectors for the install.