
Nur HVAC installed a Bryant 821S gas furnace for this Belmont home as part of a heating system replacement, one of several recent furnace jobs in the Belmont and San Mateo area. The 821S is a strong performer that delivers consistent warmth throughout the house, even on the coldest days of the year.
At Nur HVAC, we specialize in HVAC system installations and replacements, and the Bryant 821S is one of our go-to recommendations for homeowners who want reliability, efficiency, and long-term comfort from a furnace they can count on. When a furnace reaches the end of its service life, replacing it with a properly sized, well-vented unit is the surest way to restore steady heat and avoid recurring breakdowns.
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Why the Bryant 821S works so well
- Consistent warmth: the furnace keeps temperatures steady across the home rather than leaving cold spots behind.
- Precise temperature control: it holds the setting you choose for comfortable, predictable heating.
- Energy savings: its efficient design helps lower the cost of keeping the home warm through winter.
- Long-term reliability: the 821S is built to deliver dependable comfort season after season.
- Quiet, steady operation: the furnace runs smoothly in the background while keeping the home warm.
How the replacement went
This furnace suits homeowners replacing an older or failing unit who want a reliable, efficient upgrade. As with every job, Nur HVAC completed the installation with clean gas and venting connections and full testing and commissioning, so the system was running safely and correctly before we left.
If your own furnace is getting old or struggling to keep the house warm, our team handles furnace installation and replacement across Belmont, San Mateo, and nearby cities. Reach out to Nur HVAC and we will help you pick the right unit and install it properly the first time.

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Reviews
Trusted by your neighbors


“After getting multiple estimates to replace our gas furnace and damaged ducting, we chose Nur HVAC and have been very satisfied with the workmanship and quality of our Mitsubishi heat pump mini-split setup and heat pump water heater. David was helpful in explaining why we should consider a ductless mini-split setup since we needed to remove all our old ducting. Nur HVAC was the only company to help us consider the options vs. just following what I thought was available. Their pricing is competitive, but I was most impressed with the installation of our 4 cassette indoor units - very clean, during and after what was probably a challenging 1-week install. Artur and Vlad worked hard and always checked in, let me know when they were out for lunch, and done for the day while I was working in and out of the house. Nur HVAC also assists with the rebates and financing options if available to you - as well as the permitting and final inspections. Great company and team, would definitely recommend!”

“Everything you want from an appliance repair company. They showed up on time, they were polite, clean, efficient and gave a reasonable quote. Ours was a simple job. One of the lights on our Zephyr hood had been out of commission for years. Since I don't like the feeling of getting electrocuted, I finally decided to have someone look at it.The problem was diagnosed very quickly. They gave me a reasonable price quote and quickly fixed the issue. When the job was completed, I asked if, while they were here, could they take a look at a separate issue we had with our Robern medicine cabinet's built-in night light. Again, the problem was diagnosed quickly and fixed quickly. Nur Service is a new company and deserves and has earned our future business for sure!”

“Adlan came on time, was super professional, and got it fixed for a reasonable price. He went through the debugging very systematically: fuse blown -- but why? He checked each component along the path until we got to the culprit. And then he was checking why would that component fail and gave some recommendations. He made sure to clean the work area and was off. Thanks Adlan!”
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“Excellent service ! Adlan arrived on time , and went into detail about what was wrong with the unit . He explained the problem well and was able to fix it quickly . Thanks to him I have a working ac unit .”
“Called them over the weekend and they arrived on time on Monday. Quick fix for a failed furnace motor. Finished the job in an hour. Very nice technician although a bit difficult to understand because English was not his first language.”
“I had a ducted heat pump system installed in the majority of my house, and a ductless mini-split installed in my family room. The workers were friendly, efficient, thorough and neat. They addressed all of my concerns.”
“I hired Nur HVAC to replace and install a new heat pump. Throughout the long duration of the project (with HOA, city permit and other stuff, this is inevitable), the team has been very professional, responsive and knowledgeable. Artur is up to speed of everything and answer any questions I have. Sergei and installation teams are on-time with high quality work. Last, their quote is also competitive.”
“I tried a couple of different businesses for a cooling issue with my heat pump system and Nur engineers showed more patience and knowledge than the others. In addition they were also more reasonable on pricing, while focusing on fixing the actual root cause of the problem.”
“We are very pleased with our technician Adlan. He did a great service for us and was very thorough on checking through everything that can further improve the AC performance after fixing the main issue. I highly recommend the quality of his services and would not hesitate using the company again.”
“I had a great experience with Nur HVAC. They were quick to respond, punctual, friendly, and professional from start to finish. Their pricing was fair and transparent, and the quality of their work was excellent. I truly appreciated their efficiency and positive attitude. I would highly recommend Nur HVAC to anyone in need of reliable HVAC services!”
“Arrived on time, sent a photo of the person who would be responding to my home. They covered my floor and walk way where they would be walking and immediately began to work. The worked steadily and then cleaned after they were through. My new system is quiet, and working beautifully. STRONG recommendation for this company!”
“Fedor and Volodymyr are extremely profession and detail oriented for helping my HVAC and heat pump systems. Highly recommend it!”
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