HeatsinkUSA emails
HeatsinkUSA sends about 2 emails a week through Klaviyo, most often on Thursday around 1 PM Eastern.
- ESP
- Klaviyo
- Emails a week
- about 2
- Busiest send time
- Thursdays at 1pm ET
- Last sent
- 10 days ago · Oct 23
- Tracked since
- Jun 2026
- Emails collected
- 21
Recent emails
Oct 23, 2026 6:03 AM
The Heatsink Hall of Fame
Oct 19, 2026 6:06 AM
We're at Your Service, Friend
Oct 16, 2026 3:03 AM
Welcome to HeatsinkUSA
Oct 15, 2026 7:14 PM
Thinking About This Heatsink, Friend? 👀
Oct 15, 2026 2:30 PM
Heatsinks for Your Next Audio Build
Oct 7, 2026 11:45 AM
Heatsinks for Your Next Audio Build
Recent subject lines
All subject linesSubject lines average 33 characters. Each one opens the email it came from.
| Picture | Sent (Eastern) | Subject | Preview text |
|---|---|---|---|
| Oct 23, 2026 6:03 AM | The Heatsink Hall of Fame | Have you shopped our best sellers? | |
| Oct 19, 2026 6:06 AM | We're at Your Service, Friend | Fill out our contact form with any inquiries you have. | |
| Oct 16, 2026 3:03 AM | Welcome to HeatsinkUSA | US-made heatsinks with simple, fair pricing. | |
| Oct 15, 2026 7:14 PM | Thinking About This Heatsink, Friend? 👀 | Feel free to add it to your cart. | |
| Oct 15, 2026 2:30 PM | Heatsinks for Your Next Audio Build | Compare profiles that fit common amplifier setups. | |
| Oct 7, 2026 11:45 AM | Heatsinks for Your Next Audio Build | Compare profiles that fit common amplifier setups. | |
| Oct 1, 2026 12:45 PM | Passive or Active Cooling? | Start with heat load and airflow. | |
| Sep 23, 2026 4:15 PM | Passive or Active Cooling? | Start with heat load and airflow. |
Archive
View full archiveOctober 2026 7 emails
View allOct 1, 2026 12:45 PM
September 2026 5 emails
View allSep 23, 2026 4:15 PM
Prototype Profiles Without the Bulk
Sep 17, 2026 1:45 PM
Here’s to the People Who Build
Sep 7, 2026 9:33 AM · Resent
Here’s to the People Who Build
Sep 4, 2026 3:15 PM
Prototype Profiles Without the Bulk
Sep 1, 2026 4:07 PM
When HeatsinkUSA sends
19% of its emails arrive in the 1 PM hour. Thursdays are the busiest day.
| 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Tue | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wed | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Thu | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Fri | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sat | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sun | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mon | Tue | Wed | Thu | Fri | Sat | Sun | |
|---|---|---|---|---|---|---|---|
| 12a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3a | 0 | 0 | 1 | 0 | 1 | 0 | 0 |
| 4a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 5a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 6a | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| 7a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 8a | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 9a | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
| 10a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 11a | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| 12p | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
| 1p | 0 | 0 | 0 | 2 | 1 | 1 | 0 |
| 2p | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| 3p | 0 | 0 | 1 | 1 | 1 | 0 | 0 |
| 4p | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| 5p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 6p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 7p | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| 8p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 9p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 10p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 11p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
FewerMore(busiest cell: 2 emails)
Based on 21 emails received from Jun 26 to Oct 23, 2026. Times in US Eastern. How we collect · When all brands send
How often HeatsinkUSA sends
Complete months have run between 4 and 7 emails.
- Busiest month
- Oct 2026, 7
- Quietest month
- Aug 2026, 4
- Busiest day
- Thursday, 6
- Quietest day
- Sunday, 0
About HeatsinkUSA
- ESP
- Klaviyo
- Tracked since
- Jun 2026
- Emails collected
- 21
- Emails a week
- about 2
- Last sent
- Oct 23, 2026
- Sends from
- newsletter@
heatsinkusa.com - Subject length
- 33 characters avg
Counts include automated emails such as a welcome series.
Similar sending frequency
| Latest email | Brand | ESP | Website popularity | Emails a week | Busiest day | Last sent | |
|---|---|---|---|---|---|---|---|
 2POOD2pood.com.au | Klaviyo | about 2 | Thursday | Oct 21, 2026 | Klaviyo · about 2 a week · busiest Thursday · last sent Oct 21, 2026 | ||
 31:33 Jewelry31-33.com | Klaviyo | about 2 | Monday | Oct 26, 2026 | Klaviyo · about 2 a week · busiest Monday · last sent Oct 26, 2026 | ||
 6D Helmets6dhelmets.com | Klaviyo | about 2 | Tuesday | Nov 1, 2026 | Klaviyo · about 2 a week · busiest Tuesday · last sent Nov 1, 2026 |
