Energy Insights

Commercial Heat Pump vs. Gas Furnace: Which Actually Costs Less Over Time?

Posted by Chris Craft- NES Retrofit Distributors on May 6th 2026

Commercial Heat Pump vs. Gas Furnace: Which Actually Costs Less Over Time?

When it comes to heating commercial spaces in Massachusetts, the decision between a heat pump and a&…

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Utility Rebates & Federal Tax Credits for Heat Pumps (2026 State-by-State Guide)

Posted by Chris Craft- NES Retrofit Distributors on Mar 12th 2026

Utility Rebates & Federal Tax Credits for Heat Pumps (2026 State-by-State Guide)

Commercial LED Retrofit ROI: How to Calculate Payback and Maximize Savings

Posted by John Alba on Feb 25th 2026

Commercial LED Retrofit ROI: How to Calculate Payback and Maximize Savings

Top Blogs

Simplifying Energy Retrofits in 2026: Why Integration Matters More Than Ever

Simplifying Energy Retrofits in 2026: Why Integration Matters More Than Ever

Posted by John Alba - NES Retrofit Distributors on Feb 2nd 2026

For many organizations, energy retrofits are handled in separate conversations, by different vendors, on diffe …

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A Simpler Way to Upgrade Heating and Cooling and make Older Buildings Have A New Feel

A Simpler Way to Upgrade Heating and Cooling and make Older Buildings Have A New Feel

Posted by Chris Craft - NES Retrofit Distributors on Jan 19th 2026

Upgrading heating and cooling systems in older buildings has always been difficult, especially in places where …

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Supplement vs Replace: When a Heat Pump Makes Sense Even If Your Furnace “Works”

Supplement vs Replace: When a Heat Pump Makes Sense Even If Your Furnace “Works”

Jan 7th 2026

If your furnace is still running, it might feel like there’s no reason to think about upgrading. But tod …

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Winter Readiness Made Simple.

Winter Readiness Made Simple.

Posted by Chris Craft - NES Retrofit Distributors on Dec 15th 2025

The holidays are here: tree-lighting festivals are bringing communities together, shoppers are lining up for l …

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Grateful for the Ecosystem That Powers National Efficiency Supply

Grateful for the Ecosystem That Powers National Efficiency Supply

Dec 1st 2025

As we reflect on our journey at National Efficiency Supply, gratitude comes first. Running a business is never …

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The Great Refrigerant Shift: Why R-410A Is Being Replaced and What It Means for Your HVAC Business

The Great Refrigerant Shift: Why R-410A Is Being Replaced and What It Means for Your HVAC Business

Nov 12th 2025

From compliance to performance to future-proofing — the next chapter in refrigerant evolution for distri …

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Heat Pumps — The Future of HVAC: Why Now Is the Time to Get On Board

Heat Pumps — The Future of HVAC: Why Now Is the Time to Get On Board

Oct 29th 2025

From comfort and cost-savings to grid-resilience and net‐zero readiness, heat pumps are moving from niche to n …

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