We Use Cookies

We use cookies to enhance the security, performance, functionality and for analytical and promotional activities. We use cookies to personalize ads for you. By continuing to browse this site you're agreeing to our Privacy Policy

Filter by

Pricing range

$26

$745

Pricing

Store

Condition

Filter by brand

Other

best dealsdiscountscostco water heater
Costco water heater Deals in Australia

Today's best

deals, discounts, and offers

10 deals found

Sort by:

Deals are available from 1 stores and 9 brands. An additional discount is available for 1 items. Last updated on 24 September 2025.
FEDOUR 25W 50W 100W 200W 300W Adjustable Aquarium Heater, Submersible Glass Heater for 10L-300L Fish Tank (50W for 15-55L)
FEDOUR 25W 50W 100W 200W 300W Adjustable Aquarium Heater, Submersible Glass Heater for 10L-300L Fish Tank (50W for 15-55L)
FEDOUR 25W 50W 100W 200W 300W Adjustable Aquarium Heater, Submersible Glass Heater for 10L-300L Fish Tank (50W for 15-55L)
New
Free Shipping
View Deal
Electric Hot Storage Water Heater 50L Water Heater Storage, RV TR Endless Trailer Indoor Waterproof Shower Compact Point-of-Use, AU Plug (White-10L)
Electric Hot Storage Water Heater 50L Water Heater Storage, RV TR Endless Trailer Indoor Waterproof Shower Compact Point-of-Use, AU Plug (White-10L)
Electric Hot Storage Water Heater 50L Water Heater Storage, RV TR Endless Trailer Indoor Waterproof Shower Compact Point-of-Use, AU Plug (White-10L)
New
Free Shipping
View Deal
HiTauing 300W Aquarium Heater, 300W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater (AU Plug Included)
HiTauing 300W Aquarium Heater, 300W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater (AU Plug Included)
HiTauing 300W Aquarium Heater, 300W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater (AU Plug Included)
New
Free Shipping
View Deal
1500W Electric Water Heater, 8L Under Sink Mini Water Heater with LED Display, Adjustable Temperature Hot Water System Heater, 2Gallon Capacity
1500W Electric Water Heater, 8L Under Sink Mini Water Heater with LED Display, Adjustable Temperature Hot Water System Heater, 2Gallon Capacity
1500W Electric Water Heater, 8L Under Sink Mini Water Heater with LED Display, Adjustable Temperature Hot Water System Heater, 2Gallon Capacity
New
Free Shipping
View Deal
Camplux AY132 Gas Hot Water Heater Tankless, Portable LPG Camping Shower Instant, for RV, Outdoor Use, 5L
Camplux AY132 Gas Hot Water Heater Tankless, Portable LPG Camping Shower Instant, for RV, Outdoor Use, 5L
Camplux AY132 Gas Hot Water Heater Tankless, Portable LPG Camping Shower Instant, for RV, Outdoor Use, 5L
New
Free Shipping
View Deal
LAPOOH Hot Water Heater - Large Screen Dynamic Digital Display - Instant Hot and Cold Water Heater for Bathroom and Kitchen - Tankless
12% Off
LAPOOH Hot Water Heater - Large Screen Dynamic Digital Display - Instant Hot and Cold Water Heater for Bathroom and Kitchen - Tankless
LAPOOH Hot Water Heater - Large Screen Dynamic Digital Display - Instant Hot and Cold Water Heater for Bathroom and Kitchen - Tankless
New
$51.99
Free Shipping
View Deal
HiTauing 500W Aquarium Heater, 500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater (AU Plug Included)
HiTauing 500W Aquarium Heater, 500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater (AU Plug Included)
HiTauing 500W Aquarium Heater, 500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater (AU Plug Included)
New
Free Shipping
View Deal
Dual Power Water Heater, 12V DC 200W/230V AC 1500W, 15L, for Caravan Camping UK Plug 230v RV Tank Water Heater, Instant for RV, for Camper with Double Power Supply & Remote Controller
Dual Power Water Heater, 12V DC 200W/230V AC 1500W, 15L, for Caravan Camping UK Plug 230v RV Tank Water Heater, Instant for RV, for Camper with Double Power Supply & Remote Controller
Dual Power Water Heater, 12V DC 200W/230V AC 1500W, 15L, for Caravan Camping UK Plug 230v RV Tank Water Heater, Instant for RV, for Camper with Double Power Supply & Remote Controller
New
Free Shipping
View Deal
Stiebel Eltron DNM Hydraulic Controlled Mini Tankless Water Heater, White, 185411 3.5 kilowattsW, 230 voltsV
Stiebel Eltron DNM Hydraulic Controlled Mini Tankless Water Heater, White, 185411 3.5 kilowattsW, 230 voltsV
Stiebel Eltron DNM Hydraulic Controlled Mini Tankless Water Heater, White, 185411 3.5 kilowattsW, 230 voltsV
New
Free Shipping
View Deal
Tiger Electric Hot Water Heater Boiler Warmer Kettle - 4 Temperature Settings 98°C, 90°C, 80°C and 70°C - PDU-A40A 4.0L - Stainless Steel - Made in Japan - Australian Model
Tiger Electric Hot Water Heater Boiler Warmer Kettle - 4 Temperature Settings 98°C, 90°C, 80°C and 70°C - PDU-A40A 4.0L - Stainless Steel - Made in Japan - Australian Model
Tiger Electric Hot Water Heater Boiler Warmer Kettle - 4 Temperature Settings 98°C, 90°C, 80°C and 70°C - PDU-A40A 4.0L - Stainless Steel - Made in Japan - Australian Model
New
Free Shipping
View Deal
BestDeals.today is customer-supported. When you buy products through our site, we may earn an affiliate commission on featured products.