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400K BTU Pentair MasterTemp Pool Heater 460737

$930.00

Size Guide

Size Guide

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Delivery & Return

Delivery

Store delivery FREE

1-3 working days

Home or collection point from £35.00 FREE

On all your orders for home or collection point delivery

Returns

Return

Elessi will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period).

Returns in store FREE

Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed. Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.
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Description

📋 Key Specifications

🔥 Heating Capacity: 400,000 BTU/hr
⛽ Fuel Type: Propane Gas
⚡ Electrical: 120/240V, Single Phase
🌱 Low NOx Design
📱 Digital Full-Text Display
🔄 Automation Compatible
⚖️ Weight: Approximately 136 lbs
🏊 Application: Large pools, spas, and pool/spa combinations
🛠️ Optional Smart Bypass Valve Available for energy savings and automation integration.

🚀 Heating Performance

A 400,000 BTU heater is considered a high-output residential unit.

Typical applications:

Pool Size	Performance
10,000–15,000 gal	Extremely fast
15,000–25,000 gal	Excellent
25,000–40,000 gal	Very good
Pool + Spa Combo	Ideal

For spas, owners often report very rapid heating compared with heat pumps. Community discussions commonly recommend the 400K model when quick heat-up time is a priority.