Price History for InstaGas Classic Propane Gas Tankless Water Heater 120,000 BTU, Max 5.1 GPM, 120V AC Indoor, CSA Certified, White
Close
InstaGas Classic Propane Gas Tankless Water Heater 120,000 BTU, Max 5.1 GPM, 120V AC Indoor, CSA Certified, White
"Adopts more advanced technology that safer and longer-lasting. TANKLESS Design provides instant hot water endless. Previous Vent 3"" and Water/Gas Pipe 3/4"" compatible with tankless, only simple re-layout. Us
Set Price Alert
Price History Chart
Recorded price history
| Date | Price |
|---|---|
| Aug 5, 2026 | $499.95 |
| Jul 19, 2026 | $499.96 |
| Jul 12, 2026 | $514.82 |
| Jul 11, 2026 | $499.83 |
| Apr 6, 2026 | $479.39 |
| Dec 14, 2025 | $568.39 |
| Nov 15, 2025 | $568.39 |
| Oct 24, 2025 | $568.39 |
| Oct 17, 2025 | $568.39 |
Analysis
InstaGas Classic Propane Gas Tankless Water Heater 120,000 BTU, Max 5.1 GPM, 120V AC Indoor, CSA Certified, White price analysis
Price analysis for InstaGas Classic Propane Gas Tankless Water Heater 120,000 BTU, Max 5.1 GPM, 120V AC Indoor, CSA Certified, White at Home Depot: Today's price is $499.95. That's 12% off the MSRP of $568.39. Current price is 1% below the 90-day average of $503.64 (a $3.69 below the running mean).
- The current price of $499.95 is 12% (or $68.44) below the MSRP of $568.39.
- Current price is 1% below the 90-day average of $503.64 (a $3.69 below the running mean).
- The lowest recorded price on PriceWatchPro was $479.39 on April 6, 2026. That's $20.56 below today's price.
- The highest recorded price on PriceWatchPro was $568.39 on October 17, 2025. Today's price is $68.44 below that peak.
- Across 8 tracked price changes, the listing has dropped 2 times with an average drop of $51.93.
- PriceWatchPro has been tracking this listing since October 17, 2025 (305 days of price history).
Related
More Plumbing deals on Home Depot
Track price history on other items shoppers are watching in this category.
Support
Home Depot FAQs
Tips for tracking this Home Depot item with alerts and price history.
How do I track price drops for Home Depot?
Pick a target price on this page and save it. We will email you when this Home Depot listing drops below your goal.
Where can I review price history?
Check the price history chart on this page to compare today’s price against recent highs and lows before buying.
Can I edit or pause alerts later?
Yes. Edit, pause, or delete alerts anytime from your PriceWatchPro dashboard after you sign in.
Snapshot
InstaGas Classic Propane Gas Tankless Water Heater 120,000 BTU, Max 5.1 GPM, 120V AC Indoor, CSA Certified, White shopping snapshot
Track this Home Depot listing with real-time alerts, a full price history, and side-by-side savings tips.
Understand pricing trends
Use the chart above to see seasonal lows, promo spikes, and the average street price so you can time your purchase.
Set alerts that match your budget
Choose a target price and we will email you when InstaGas Classic Propane Gas Tankless Water Heater 120,000 BTU, Max 5.1 GPM, 120V AC Indoor, CSA Certified, White dips below that number.
Shop confidently
Review specs, availability, and recent updates from Home Depot before jumping to the store page.