Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

Optimal Water Heaters

8 results

Optimal opti 18kW 240V 3.7GPM 25-Year Warranty Electric Tankless Water Heater

Optimal 

opti 18kW 240V 3.7GPM 25-Year Warranty Electric Tankless Water Heater

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for pricing and availability

4.7
68
Family Size:3-4 People
Optimal opti 27kW 240V 4.5GPM 25-Year Warranty Electric Tankless Water Heater

Optimal 

opti 27kW 240V 4.5GPM 25-Year Warranty Electric Tankless Water Heater

Find My Store

for pricing and availability

4.7
68
Family Size:5+ People
Optimal opti 15kW 240V 3 GPM 25-Year Warranty Electric Tankless Water Heater

Optimal 

opti 15kW 240V 3 GPM 25-Year Warranty Electric Tankless Water Heater

Find My Store

for pricing and availability

4.7
68
Family Size:3-4 People
Optimal opti plus 27kW 240V 4.5GPM Wifi Enabled 25-Year Warranty Electric Tankless Water Heater

Optimal 

opti plus 27kW 240V 4.5GPM Wifi Enabled 25-Year Warranty Electric Tankless Water Heater

Find My Store

for pricing and availability

4.8
37
Family Size:5+ People
Optimal opti plus 15kW 240V 3 GPM Wifi Enabled 25-Year Warranty Electric Tankless Water Heater

Optimal 

opti plus 15kW 240V 3 GPM Wifi Enabled 25-Year Warranty Electric Tankless Water Heater

Find My Store

for pricing and availability

4.8
37
Family Size:3-4 People
Optimal opti plus 18kW 240V 3.7GPM Wifi Enabled 25-Year Warranty Electric Tankless Water Heater

Optimal 

opti plus 18kW 240V 3.7GPM Wifi Enabled 25-Year Warranty Electric Tankless Water Heater

Find My Store

for pricing and availability

4.8
37
Family Size:3-4 People
Optimal opti plus 12kW 208V 2.5GPM Wifi Enabled 25-Year Warranty Electric Tankless Water Heater

Optimal 

opti plus 12kW 208V 2.5GPM Wifi Enabled 25-Year Warranty Electric Tankless Water Heater

Find My Store

for pricing and availability

4.8
37
Family Size:3-4 People
Optimal opti 12kW 208V 2.5GPM 25-Year Warranty Electric Tankless Water Heater

Optimal 

opti 12kW 208V 2.5GPM 25-Year Warranty Electric Tankless Water Heater

Find My Store

for pricing and availability

4.7
68
Family Size:3-4 People